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Finding the Fourth Proportional to 533,139.12, 735,742.44 and 291,414.96

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Solution

The fourth proportional to 533,139.12, 735,742.44 and 291,414.96 is: 402,158.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,139.12 : 735,742.44 = 291,414.96 : x
  2. Step 2: Convert to fraction form
    533,139.12/735,742.44 = 291,414.96/x
  3. Step 3: Cross multiply
    533,139.12x = 735,742.44 × 291,414.96
  4. Step 4: Simplify right side
    533,139.12x = 214,406,353,722.90
  5. Step 5: Solve for x
    x = 214,406,353,722.90/533,139.12
  6. Step 6: Final answer
    x = 402,158.36

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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.