Home / 392,386.50-588,585.29-111,903.75

Finding the Fourth Proportional to 392,386.50, 588,585.29 and 111,903.75

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Solution

The fourth proportional to 392,386.50, 588,585.29 and 111,903.75 is: 167,857.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,386.50 : 588,585.29 = 111,903.75 : x
  2. Step 2: Convert to fraction form
    392,386.50/588,585.29 = 111,903.75/x
  3. Step 3: Cross multiply
    392,386.50x = 588,585.29 × 111,903.75
  4. Step 4: Simplify right side
    392,386.50x = 65,864,900,586.32
  5. Step 5: Solve for x
    x = 65,864,900,586.32/392,386.50
  6. Step 6: Final answer
    x = 167,857.20

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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.