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Finding the Fourth Proportional to 239,276.40, 330,143.65 and 157,596

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Solution

The fourth proportional to 239,276.40, 330,143.65 and 157,596 is: 217,444.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,276.40 : 330,143.65 = 157,596 : x
  2. Step 2: Convert to fraction form
    239,276.40/330,143.65 = 157,596/x
  3. Step 3: Cross multiply
    239,276.40x = 330,143.65 × 157,596
  4. Step 4: Simplify right side
    239,276.40x = 52,029,318,665.40
  5. Step 5: Solve for x
    x = 52,029,318,665.40/239,276.40
  6. Step 6: Final answer
    x = 217,444.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.