Home / 238,547.09-329,189.47-129,648.87

Finding the Fourth Proportional to 238,547.09, 329,189.47 and 129,648.87

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Solution

The fourth proportional to 238,547.09, 329,189.47 and 129,648.87 is: 178,912.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,547.09 : 329,189.47 = 129,648.87 : x
  2. Step 2: Convert to fraction form
    238,547.09/329,189.47 = 129,648.87/x
  3. Step 3: Cross multiply
    238,547.09x = 329,189.47 × 129,648.87
  4. Step 4: Simplify right side
    238,547.09x = 42,679,042,477.28
  5. Step 5: Solve for x
    x = 42,679,042,477.28/238,547.09
  6. Step 6: Final answer
    x = 178,912.44

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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.