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Finding the Fourth Proportional to 216,499.88, 324,750.24 and 83,442.80

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Solution

The fourth proportional to 216,499.88, 324,750.24 and 83,442.80 is: 125,164.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,499.88 : 324,750.24 = 83,442.80 : x
  2. Step 2: Convert to fraction form
    216,499.88/324,750.24 = 83,442.80/x
  3. Step 3: Cross multiply
    216,499.88x = 324,750.24 × 83,442.80
  4. Step 4: Simplify right side
    216,499.88x = 27,098,069,326.27
  5. Step 5: Solve for x
    x = 27,098,069,326.27/216,499.88
  6. Step 6: Final answer
    x = 125,164.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.