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Finding the Fourth Proportional to 541.11, 746.80 and 354.76

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Solution

The fourth proportional to 541.11, 746.80 and 354.76 is: 489.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    541.11 : 746.80 = 354.76 : x
  2. Step 2: Convert to fraction form
    541.11/746.80 = 354.76/x
  3. Step 3: Cross multiply
    541.11x = 746.80 × 354.76
  4. Step 4: Simplify right side
    541.11x = 264,931.03
  5. Step 5: Solve for x
    x = 264,931.03/541.11
  6. Step 6: Final answer
    x = 489.61

Related Problems

Find fourth proportional to 270.56, 373.40 and 177.38
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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.