Home / 231,261.48-319,239.21-140,646.55

Finding the Fourth Proportional to 231,261.48, 319,239.21 and 140,646.55

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Solution

The fourth proportional to 231,261.48, 319,239.21 and 140,646.55 is: 194,152.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,261.48 : 319,239.21 = 140,646.55 : x
  2. Step 2: Convert to fraction form
    231,261.48/319,239.21 = 140,646.55/x
  3. Step 3: Cross multiply
    231,261.48x = 319,239.21 × 140,646.55
  4. Step 4: Simplify right side
    231,261.48x = 44,899,892,976.84
  5. Step 5: Solve for x
    x = 44,899,892,976.84/231,261.48
  6. Step 6: Final answer
    x = 194,152.06

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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.