Home / 218,829.60-328,244.40-140,032.80

Finding the Fourth Proportional to 218,829.60, 328,244.40 and 140,032.80

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Solution

The fourth proportional to 218,829.60, 328,244.40 and 140,032.80 is: 210,049.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,829.60 : 328,244.40 = 140,032.80 : x
  2. Step 2: Convert to fraction form
    218,829.60/328,244.40 = 140,032.80/x
  3. Step 3: Cross multiply
    218,829.60x = 328,244.40 × 140,032.80
  4. Step 4: Simplify right side
    218,829.60x = 45,964,982,416.32
  5. Step 5: Solve for x
    x = 45,964,982,416.32/218,829.60
  6. Step 6: Final answer
    x = 210,049.20

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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.