Home / 205,502.40-308,043-130,677.84

Finding the Fourth Proportional to 205,502.40, 308,043 and 130,677.84

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Solution

The fourth proportional to 205,502.40, 308,043 and 130,677.84 is: 195,882.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,502.40 : 308,043 = 130,677.84 : x
  2. Step 2: Convert to fraction form
    205,502.40/308,043 = 130,677.84/x
  3. Step 3: Cross multiply
    205,502.40x = 308,043 × 130,677.84
  4. Step 4: Simplify right side
    205,502.40x = 40,254,393,867.12
  5. Step 5: Solve for x
    x = 40,254,393,867.12/205,502.40
  6. Step 6: Final answer
    x = 195,882.84

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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.