Home / 238,722.29-329,430.80-129,825.33

Finding the Fourth Proportional to 238,722.29, 329,430.80 and 129,825.33

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Solution

The fourth proportional to 238,722.29, 329,430.80 and 129,825.33 is: 179,155.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,722.29 : 329,430.80 = 129,825.33 : x
  2. Step 2: Convert to fraction form
    238,722.29/329,430.80 = 129,825.33/x
  3. Step 3: Cross multiply
    238,722.29x = 329,430.80 × 129,825.33
  4. Step 4: Simplify right side
    238,722.29x = 42,768,462,534.14
  5. Step 5: Solve for x
    x = 42,768,462,534.14/238,722.29
  6. Step 6: Final answer
    x = 179,155.72

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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.