Home / 437,921.70-656,826.06-138,432.57

Finding the Fourth Proportional to 437,921.70, 656,826.06 and 138,432.57

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Solution

The fourth proportional to 437,921.70, 656,826.06 and 138,432.57 is: 207,631.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,921.70 : 656,826.06 = 138,432.57 : x
  2. Step 2: Convert to fraction form
    437,921.70/656,826.06 = 138,432.57/x
  3. Step 3: Cross multiply
    437,921.70x = 656,826.06 × 138,432.57
  4. Step 4: Simplify right side
    437,921.70x = 90,926,119,528.77
  5. Step 5: Solve for x
    x = 90,926,119,528.77/437,921.70
  6. Step 6: Final answer
    x = 207,631.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.