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Finding the Fourth Proportional to 440,906.59, 661,307.03 and 137,322.64

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Solution

The fourth proportional to 440,906.59, 661,307.03 and 137,322.64 is: 205,967.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,906.59 : 661,307.03 = 137,322.64 : x
  2. Step 2: Convert to fraction form
    440,906.59/661,307.03 = 137,322.64/x
  3. Step 3: Cross multiply
    440,906.59x = 661,307.03 × 137,322.64
  4. Step 4: Simplify right side
    440,906.59x = 90,812,423,217.01
  5. Step 5: Solve for x
    x = 90,812,423,217.01/440,906.59
  6. Step 6: Final answer
    x = 205,967.49

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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.