Home / 425,929.50-638,707.14-159,503.18

Finding the Fourth Proportional to 425,929.50, 638,707.14 and 159,503.18

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Solution

The fourth proportional to 425,929.50, 638,707.14 and 159,503.18 is: 239,184.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,929.50 : 638,707.14 = 159,503.18 : x
  2. Step 2: Convert to fraction form
    425,929.50/638,707.14 = 159,503.18/x
  3. Step 3: Cross multiply
    425,929.50x = 638,707.14 × 159,503.18
  4. Step 4: Simplify right side
    425,929.50x = 101,875,816,725.17
  5. Step 5: Solve for x
    x = 101,875,816,725.17/425,929.50
  6. Step 6: Final answer
    x = 239,184.69

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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.