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Finding the Fourth Proportional to 239,789.40, 330,909.40 and 132,359.46

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Solution

The fourth proportional to 239,789.40, 330,909.40 and 132,359.46 is: 182,656.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,789.40 : 330,909.40 = 132,359.46 : x
  2. Step 2: Convert to fraction form
    239,789.40/330,909.40 = 132,359.46/x
  3. Step 3: Cross multiply
    239,789.40x = 330,909.40 × 132,359.46
  4. Step 4: Simplify right side
    239,789.40x = 43,798,989,492.92
  5. Step 5: Solve for x
    x = 43,798,989,492.92/239,789.40
  6. Step 6: Final answer
    x = 182,656.07

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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.