Home / 231,404.98-319,346.13-130,809.46

Finding the Fourth Proportional to 231,404.98, 319,346.13 and 130,809.46

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Solution

The fourth proportional to 231,404.98, 319,346.13 and 130,809.46 is: 180,521.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,404.98 : 319,346.13 = 130,809.46 : x
  2. Step 2: Convert to fraction form
    231,404.98/319,346.13 = 130,809.46/x
  3. Step 3: Cross multiply
    231,404.98x = 319,346.13 × 130,809.46
  4. Step 4: Simplify right side
    231,404.98x = 41,773,494,818.39
  5. Step 5: Solve for x
    x = 41,773,494,818.39/231,404.98
  6. Step 6: Final answer
    x = 180,521.16

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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.