Home / 238,345.65-328,919.37-129,452.11

Finding the Fourth Proportional to 238,345.65, 328,919.37 and 129,452.11

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Solution

The fourth proportional to 238,345.65, 328,919.37 and 129,452.11 is: 178,645.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,345.65 : 328,919.37 = 129,452.11 : x
  2. Step 2: Convert to fraction form
    238,345.65/328,919.37 = 129,452.11/x
  3. Step 3: Cross multiply
    238,345.65x = 328,919.37 × 129,452.11
  4. Step 4: Simplify right side
    238,345.65x = 42,579,305,158.63
  5. Step 5: Solve for x
    x = 42,579,305,158.63/238,345.65
  6. Step 6: Final answer
    x = 178,645.20

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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.