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Finding the Fourth Proportional to 440,989.83, 661,448.82 and 141,389.73

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Solution

The fourth proportional to 440,989.83, 661,448.82 and 141,389.73 is: 212,073.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,989.83 : 661,448.82 = 141,389.73 : x
  2. Step 2: Convert to fraction form
    440,989.83/661,448.82 = 141,389.73/x
  3. Step 3: Cross multiply
    440,989.83x = 661,448.82 × 141,389.73
  4. Step 4: Simplify right side
    440,989.83x = 93,522,070,068.62
  5. Step 5: Solve for x
    x = 93,522,070,068.62/440,989.83
  6. Step 6: Final answer
    x = 212,073.08

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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.