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Finding the Fourth Proportional to 321,692.73, 482,225.30 and 153,167.78

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Solution

The fourth proportional to 321,692.73, 482,225.30 and 153,167.78 is: 229,602.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,692.73 : 482,225.30 = 153,167.78 : x
  2. Step 2: Convert to fraction form
    321,692.73/482,225.30 = 153,167.78/x
  3. Step 3: Cross multiply
    321,692.73x = 482,225.30 × 153,167.78
  4. Step 4: Simplify right side
    321,692.73x = 73,861,376,632.63
  5. Step 5: Solve for x
    x = 73,861,376,632.63/321,692.73
  6. Step 6: Final answer
    x = 229,602.26

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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.