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Finding the Fourth Proportional to 238,407.90, 329,001.52 and 130,975.62

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Solution

The fourth proportional to 238,407.90, 329,001.52 and 130,975.62 is: 180,745.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,407.90 : 329,001.52 = 130,975.62 : x
  2. Step 2: Convert to fraction form
    238,407.90/329,001.52 = 130,975.62/x
  3. Step 3: Cross multiply
    238,407.90x = 329,001.52 × 130,975.62
  4. Step 4: Simplify right side
    238,407.90x = 43,091,178,062.94
  5. Step 5: Solve for x
    x = 43,091,178,062.94/238,407.90
  6. Step 6: Final answer
    x = 180,745.60

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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.