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Finding the Fourth Proportional to 454,715.64, 681,885.80 and 155,220.37

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Solution

The fourth proportional to 454,715.64, 681,885.80 and 155,220.37 is: 232,766.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,715.64 : 681,885.80 = 155,220.37 : x
  2. Step 2: Convert to fraction form
    454,715.64/681,885.80 = 155,220.37/x
  3. Step 3: Cross multiply
    454,715.64x = 681,885.80 × 155,220.37
  4. Step 4: Simplify right side
    454,715.64x = 105,842,566,832.08
  5. Step 5: Solve for x
    x = 105,842,566,832.08/454,715.64
  6. Step 6: Final answer
    x = 232,766.50

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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.