Home / 216,261.01-298,427.83-129,144.43

Finding the Fourth Proportional to 216,261.01, 298,427.83 and 129,144.43

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Solution

The fourth proportional to 216,261.01, 298,427.83 and 129,144.43 is: 178,211.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,261.01 : 298,427.83 = 129,144.43 : x
  2. Step 2: Convert to fraction form
    216,261.01/298,427.83 = 129,144.43/x
  3. Step 3: Cross multiply
    216,261.01x = 298,427.83 × 129,144.43
  4. Step 4: Simplify right side
    216,261.01x = 38,540,292,001.49
  5. Step 5: Solve for x
    x = 38,540,292,001.49/216,261.01
  6. Step 6: Final answer
    x = 178,211.93

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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.