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Finding the Fourth Proportional to 534.77, 737.71 and 348.57

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Solution

The fourth proportional to 534.77, 737.71 and 348.57 is: 480.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.77 : 737.71 = 348.57 : x
  2. Step 2: Convert to fraction form
    534.77/737.71 = 348.57/x
  3. Step 3: Cross multiply
    534.77x = 737.71 × 348.57
  4. Step 4: Simplify right side
    534.77x = 257,142.70
  5. Step 5: Solve for x
    x = 257,142.70/534.77
  6. Step 6: Final answer
    x = 480.85

Related Problems

Find fourth proportional to 267.38, 368.85 and 174.29
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Double scale
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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.