Home / 231,261.18-319,556.39-180,402.49

Finding the Fourth Proportional to 231,261.18, 319,556.39 and 180,402.49

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Solution

The fourth proportional to 231,261.18, 319,556.39 and 180,402.49 is: 249,279.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,261.18 : 319,556.39 = 180,402.49 : x
  2. Step 2: Convert to fraction form
    231,261.18/319,556.39 = 180,402.49/x
  3. Step 3: Cross multiply
    231,261.18x = 319,556.39 × 180,402.49
  4. Step 4: Simplify right side
    231,261.18x = 57,648,768,963.61
  5. Step 5: Solve for x
    x = 57,648,768,963.61/231,261.18
  6. Step 6: Final answer
    x = 249,279.93

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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.