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Finding the Fourth Proportional to 239,686.79, 330,767.38 and 132,256.74

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Solution

The fourth proportional to 239,686.79, 330,767.38 and 132,256.74 is: 182,514.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,686.79 : 330,767.38 = 132,256.74 : x
  2. Step 2: Convert to fraction form
    239,686.79/330,767.38 = 132,256.74/x
  3. Step 3: Cross multiply
    239,686.79x = 330,767.38 × 132,256.74
  4. Step 4: Simplify right side
    239,686.79x = 43,746,213,062.02
  5. Step 5: Solve for x
    x = 43,746,213,062.02/239,686.79
  6. Step 6: Final answer
    x = 182,514.08

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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.