Home / 347,711.60-521,632.20-111,121.40

Finding the Fourth Proportional to 347,711.60, 521,632.20 and 111,121.40

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Solution

The fourth proportional to 347,711.60, 521,632.20 and 111,121.40 is: 166,702.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,711.60 : 521,632.20 = 111,121.40 : x
  2. Step 2: Convert to fraction form
    347,711.60/521,632.20 = 111,121.40/x
  3. Step 3: Cross multiply
    347,711.60x = 521,632.20 × 111,121.40
  4. Step 4: Simplify right side
    347,711.60x = 57,964,500,349.08
  5. Step 5: Solve for x
    x = 57,964,500,349.08/347,711.60
  6. Step 6: Final answer
    x = 166,702.81

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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.