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Finding the Fourth Proportional to 155,957.20, 233,935.80 and 146,115.70

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Solution

The fourth proportional to 155,957.20, 233,935.80 and 146,115.70 is: 219,173.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,957.20 : 233,935.80 = 146,115.70 : x
  2. Step 2: Convert to fraction form
    155,957.20/233,935.80 = 146,115.70/x
  3. Step 3: Cross multiply
    155,957.20x = 233,935.80 × 146,115.70
  4. Step 4: Simplify right side
    155,957.20x = 34,181,693,172.06
  5. Step 5: Solve for x
    x = 34,181,693,172.06/155,957.20
  6. Step 6: Final answer
    x = 219,173.55

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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.