Home / 425,917.13-638,688.58-159,490.76

Finding the Fourth Proportional to 425,917.13, 638,688.58 and 159,490.76

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Solution

The fourth proportional to 425,917.13, 638,688.58 and 159,490.76 is: 239,166.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,917.13 : 638,688.58 = 159,490.76 : x
  2. Step 2: Convert to fraction form
    425,917.13/638,688.58 = 159,490.76/x
  3. Step 3: Cross multiply
    425,917.13x = 638,688.58 × 159,490.76
  4. Step 4: Simplify right side
    425,917.13x = 101,864,923,435.35
  5. Step 5: Solve for x
    x = 101,864,923,435.35/425,917.13
  6. Step 6: Final answer
    x = 239,166.07

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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.