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Finding the Fourth Proportional to 572.86, 790.22 and 336.76

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Solution

The fourth proportional to 572.86, 790.22 and 336.76 is: 464.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.86 : 790.22 = 336.76 : x
  2. Step 2: Convert to fraction form
    572.86/790.22 = 336.76/x
  3. Step 3: Cross multiply
    572.86x = 790.22 × 336.76
  4. Step 4: Simplify right side
    572.86x = 266,114.49
  5. Step 5: Solve for x
    x = 266,114.49/572.86
  6. Step 6: Final answer
    x = 464.54

Related Problems

Find fourth proportional to 286.43, 395.11 and 168.38
Half scale
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Double scale
Find fourth proportional to 573.86, 791.60 and 337.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.