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Finding the Fourth Proportional to 238,358.32, 328,934.52 and 130,930.16

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Solution

The fourth proportional to 238,358.32, 328,934.52 and 130,930.16 is: 180,683.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,358.32 : 328,934.52 = 130,930.16 : x
  2. Step 2: Convert to fraction form
    238,358.32/328,934.52 = 130,930.16/x
  3. Step 3: Cross multiply
    238,358.32x = 328,934.52 × 130,930.16
  4. Step 4: Simplify right side
    238,358.32x = 43,067,449,333.12
  5. Step 5: Solve for x
    x = 43,067,449,333.12/238,358.32
  6. Step 6: Final answer
    x = 180,683.64

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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.