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Finding the Fourth Proportional to 425,898.04, 639,269.76 and 226,220.08

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Solution

The fourth proportional to 425,898.04, 639,269.76 and 226,220.08 is: 339,554.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,898.04 : 639,269.76 = 226,220.08 : x
  2. Step 2: Convert to fraction form
    425,898.04/639,269.76 = 226,220.08/x
  3. Step 3: Cross multiply
    425,898.04x = 639,269.76 × 226,220.08
  4. Step 4: Simplify right side
    425,898.04x = 144,615,656,248.78
  5. Step 5: Solve for x
    x = 144,615,656,248.78/425,898.04
  6. Step 6: Final answer
    x = 339,554.64

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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.