Home / 344,590.20-516,885.30-209,287.80

Finding the Fourth Proportional to 344,590.20, 516,885.30 and 209,287.80

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Solution

The fourth proportional to 344,590.20, 516,885.30 and 209,287.80 is: 313,931.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,590.20 : 516,885.30 = 209,287.80 : x
  2. Step 2: Convert to fraction form
    344,590.20/516,885.30 = 209,287.80/x
  3. Step 3: Cross multiply
    344,590.20x = 516,885.30 × 209,287.80
  4. Step 4: Simplify right side
    344,590.20x = 108,177,787,289.34
  5. Step 5: Solve for x
    x = 108,177,787,289.34/344,590.20
  6. Step 6: Final answer
    x = 313,931.70

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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.