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Finding the Fourth Proportional to 323,376.71, 485,065.06 and 123,758.28

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Solution

The fourth proportional to 323,376.71, 485,065.06 and 123,758.28 is: 185,637.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,376.71 : 485,065.06 = 123,758.28 : x
  2. Step 2: Convert to fraction form
    323,376.71/485,065.06 = 123,758.28/x
  3. Step 3: Cross multiply
    323,376.71x = 485,065.06 × 123,758.28
  4. Step 4: Simplify right side
    323,376.71x = 60,030,817,204.30
  5. Step 5: Solve for x
    x = 60,030,817,204.30/323,376.71
  6. Step 6: Final answer
    x = 185,637.42

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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.