Home / 454,665.16-681,997.65-155,145.73

Finding the Fourth Proportional to 454,665.16, 681,997.65 and 155,145.73

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Solution

The fourth proportional to 454,665.16, 681,997.65 and 155,145.73 is: 232,718.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,665.16 : 681,997.65 = 155,145.73 : x
  2. Step 2: Convert to fraction form
    454,665.16/681,997.65 = 155,145.73/x
  3. Step 3: Cross multiply
    454,665.16x = 681,997.65 × 155,145.73
  4. Step 4: Simplify right side
    454,665.16x = 105,809,023,267.54
  5. Step 5: Solve for x
    x = 105,809,023,267.54/454,665.16
  6. Step 6: Final answer
    x = 232,718.56

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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.