Home / 516,983.04-775,484.28-161,989.20

Finding the Fourth Proportional to 516,983.04, 775,484.28 and 161,989.20

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Solution

The fourth proportional to 516,983.04, 775,484.28 and 161,989.20 is: 242,986.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,983.04 : 775,484.28 = 161,989.20 : x
  2. Step 2: Convert to fraction form
    516,983.04/775,484.28 = 161,989.20/x
  3. Step 3: Cross multiply
    516,983.04x = 775,484.28 × 161,989.20
  4. Step 4: Simplify right side
    516,983.04x = 125,620,078,129.78
  5. Step 5: Solve for x
    x = 125,620,078,129.78/516,983.04
  6. Step 6: Final answer
    x = 242,986.85

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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.