Home / 238,973.38-329,744.67-136,980.07

Finding the Fourth Proportional to 238,973.38, 329,744.67 and 136,980.07

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Solution

The fourth proportional to 238,973.38, 329,744.67 and 136,980.07 is: 189,010.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,973.38 : 329,744.67 = 136,980.07 : x
  2. Step 2: Convert to fraction form
    238,973.38/329,744.67 = 136,980.07/x
  3. Step 3: Cross multiply
    238,973.38x = 329,744.67 × 136,980.07
  4. Step 4: Simplify right side
    238,973.38x = 45,168,447,978.73
  5. Step 5: Solve for x
    x = 45,168,447,978.73/238,973.38
  6. Step 6: Final answer
    x = 189,010.37

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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.