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Finding the Fourth Proportional to 440,990.53, 661,483.36 and 160,507.78

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Solution

The fourth proportional to 440,990.53, 661,483.36 and 160,507.78 is: 240,760.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,990.53 : 661,483.36 = 160,507.78 : x
  2. Step 2: Convert to fraction form
    440,990.53/661,483.36 = 160,507.78/x
  3. Step 3: Cross multiply
    440,990.53x = 661,483.36 × 160,507.78
  4. Step 4: Simplify right side
    440,990.53x = 106,173,224,167.47
  5. Step 5: Solve for x
    x = 106,173,224,167.47/440,990.53
  6. Step 6: Final answer
    x = 240,760.78

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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.