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Finding the Fourth Proportional to 238,945.80, 329,751.84 and 130,051.12

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Solution

The fourth proportional to 238,945.80, 329,751.84 and 130,051.12 is: 179,474.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,945.80 : 329,751.84 = 130,051.12 : x
  2. Step 2: Convert to fraction form
    238,945.80/329,751.84 = 130,051.12/x
  3. Step 3: Cross multiply
    238,945.80x = 329,751.84 × 130,051.12
  4. Step 4: Simplify right side
    238,945.80x = 42,884,596,114.06
  5. Step 5: Solve for x
    x = 42,884,596,114.06/238,945.80
  6. Step 6: Final answer
    x = 179,474.16

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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.