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Finding the Fourth Proportional to 239,783.71, 330,901.55 and 132,353.78

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Solution

The fourth proportional to 239,783.71, 330,901.55 and 132,353.78 is: 182,648.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,783.71 : 330,901.55 = 132,353.78 : x
  2. Step 2: Convert to fraction form
    239,783.71/330,901.55 = 132,353.78/x
  3. Step 3: Cross multiply
    239,783.71x = 330,901.55 × 132,353.78
  4. Step 4: Simplify right side
    239,783.71x = 43,796,070,950.36
  5. Step 5: Solve for x
    x = 43,796,070,950.36/239,783.71
  6. Step 6: Final answer
    x = 182,648.23

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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.