Home / 231,461.30-319,403.72-129,467.08

Finding the Fourth Proportional to 231,461.30, 319,403.72 and 129,467.08

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Solution

The fourth proportional to 231,461.30, 319,403.72 and 129,467.08 is: 178,657.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,461.30 : 319,403.72 = 129,467.08 : x
  2. Step 2: Convert to fraction form
    231,461.30/319,403.72 = 129,467.08/x
  3. Step 3: Cross multiply
    231,461.30x = 319,403.72 × 129,467.08
  4. Step 4: Simplify right side
    231,461.30x = 41,352,267,293.21
  5. Step 5: Solve for x
    x = 41,352,267,293.21/231,461.30
  6. Step 6: Final answer
    x = 178,657.37

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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.