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Finding the Fourth Proportional to 418,428.56, 577,429.08 and 237,174.76

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Solution

The fourth proportional to 418,428.56, 577,429.08 and 237,174.76 is: 327,299.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,428.56 : 577,429.08 = 237,174.76 : x
  2. Step 2: Convert to fraction form
    418,428.56/577,429.08 = 237,174.76/x
  3. Step 3: Cross multiply
    418,428.56x = 577,429.08 × 237,174.76
  4. Step 4: Simplify right side
    418,428.56x = 136,951,603,466.02
  5. Step 5: Solve for x
    x = 136,951,603,466.02/418,428.56
  6. Step 6: Final answer
    x = 327,299.85

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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.