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Finding the Fourth Proportional to 425,531.40, 637,754.40 and 225,947.40

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Solution

The fourth proportional to 425,531.40, 637,754.40 and 225,947.40 is: 338,632.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,531.40 : 637,754.40 = 225,947.40 : x
  2. Step 2: Convert to fraction form
    425,531.40/637,754.40 = 225,947.40/x
  3. Step 3: Cross multiply
    425,531.40x = 637,754.40 × 225,947.40
  4. Step 4: Simplify right side
    425,531.40x = 144,098,948,518.56
  5. Step 5: Solve for x
    x = 144,098,948,518.56/425,531.40
  6. Step 6: Final answer
    x = 338,632.94

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1.5x scale

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.