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Finding the Fourth Proportional to 534.30, 737.40 and 368.70

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Solution

The fourth proportional to 534.30, 737.40 and 368.70 is: 508.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.30 : 737.40 = 368.70 : x
  2. Step 2: Convert to fraction form
    534.30/737.40 = 368.70/x
  3. Step 3: Cross multiply
    534.30x = 737.40 × 368.70
  4. Step 4: Simplify right side
    534.30x = 271,879.38
  5. Step 5: Solve for x
    x = 271,879.38/534.30
  6. Step 6: Final answer
    x = 508.85

Related Problems

Find fourth proportional to 267.15, 368.70 and 184.35
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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.