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Finding the Fourth Proportional to 436.76, 602.10 and 270.89

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Solution

The fourth proportional to 436.76, 602.10 and 270.89 is: 373.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.76 : 602.10 = 270.89 : x
  2. Step 2: Convert to fraction form
    436.76/602.10 = 270.89/x
  3. Step 3: Cross multiply
    436.76x = 602.10 × 270.89
  4. Step 4: Simplify right side
    436.76x = 163,099.86
  5. Step 5: Solve for x
    x = 163,099.86/436.76
  6. Step 6: Final answer
    x = 373.44

Related Problems

Find fourth proportional to 218.38, 301.05 and 135.44
Half scale
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Double scale
Find fourth proportional to 437.76, 603.48 and 271.89
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.