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Finding the Fourth Proportional to 321,351.30, 482,026.95 and 155,463.30

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Solution

The fourth proportional to 321,351.30, 482,026.95 and 155,463.30 is: 233,194.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,351.30 : 482,026.95 = 155,463.30 : x
  2. Step 2: Convert to fraction form
    321,351.30/482,026.95 = 155,463.30/x
  3. Step 3: Cross multiply
    321,351.30x = 482,026.95 × 155,463.30
  4. Step 4: Simplify right side
    321,351.30x = 74,937,500,335.94
  5. Step 5: Solve for x
    x = 74,937,500,335.94/321,351.30
  6. Step 6: Final answer
    x = 233,194.95

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Similar ratio
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1.5x scale

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.