Home / 347,835.20-521,777.10-137,445.80

Finding the Fourth Proportional to 347,835.20, 521,777.10 and 137,445.80

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Solution

The fourth proportional to 347,835.20, 521,777.10 and 137,445.80 is: 206,178.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,835.20 : 521,777.10 = 137,445.80 : x
  2. Step 2: Convert to fraction form
    347,835.20/521,777.10 = 137,445.80/x
  3. Step 3: Cross multiply
    347,835.20x = 521,777.10 × 137,445.80
  4. Step 4: Simplify right side
    347,835.20x = 71,716,070,931.18
  5. Step 5: Solve for x
    x = 71,716,070,931.18/347,835.20
  6. Step 6: Final answer
    x = 206,178.30

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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.