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Finding the Fourth Proportional to 239,818.57, 330,940.95 and 132,386.30

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Solution

The fourth proportional to 239,818.57, 330,940.95 and 132,386.30 is: 182,688.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,818.57 : 330,940.95 = 132,386.30 : x
  2. Step 2: Convert to fraction form
    239,818.57/330,940.95 = 132,386.30/x
  3. Step 3: Cross multiply
    239,818.57x = 330,940.95 × 132,386.30
  4. Step 4: Simplify right side
    239,818.57x = 43,812,045,737.83
  5. Step 5: Solve for x
    x = 43,812,045,737.83/239,818.57
  6. Step 6: Final answer
    x = 182,688.30

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1.5x scale

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.