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Finding the Fourth Proportional to 452,602.17, 678,990.78 and 153,131.55

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Solution

The fourth proportional to 452,602.17, 678,990.78 and 153,131.55 is: 229,726.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,602.17 : 678,990.78 = 153,131.55 : x
  2. Step 2: Convert to fraction form
    452,602.17/678,990.78 = 153,131.55/x
  3. Step 3: Cross multiply
    452,602.17x = 678,990.78 × 153,131.55
  4. Step 4: Simplify right side
    452,602.17x = 103,974,910,577.11
  5. Step 5: Solve for x
    x = 103,974,910,577.11/452,602.17
  6. Step 6: Final answer
    x = 229,726.94

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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.