Home / 231,328.88-319,216.12-140,672.32

Finding the Fourth Proportional to 231,328.88, 319,216.12 and 140,672.32

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Solution

The fourth proportional to 231,328.88, 319,216.12 and 140,672.32 is: 194,117.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,328.88 : 319,216.12 = 140,672.32 : x
  2. Step 2: Convert to fraction form
    231,328.88/319,216.12 = 140,672.32/x
  3. Step 3: Cross multiply
    231,328.88x = 319,216.12 × 140,672.32
  4. Step 4: Simplify right side
    231,328.88x = 44,904,872,181.80
  5. Step 5: Solve for x
    x = 44,904,872,181.80/231,328.88
  6. Step 6: Final answer
    x = 194,117.02

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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.