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Finding the Fourth Proportional to 323,515.30, 484,908.45 and 155,116.30

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Solution

The fourth proportional to 323,515.30, 484,908.45 and 155,116.30 is: 232,499.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,515.30 : 484,908.45 = 155,116.30 : x
  2. Step 2: Convert to fraction form
    323,515.30/484,908.45 = 155,116.30/x
  3. Step 3: Cross multiply
    323,515.30x = 484,908.45 × 155,116.30
  4. Step 4: Simplify right side
    323,515.30x = 75,217,204,602.74
  5. Step 5: Solve for x
    x = 75,217,204,602.74/323,515.30
  6. Step 6: Final answer
    x = 232,499.68

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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.