Home / 385,270.60-577,128.30-218,864.20

Finding the Fourth Proportional to 385,270.60, 577,128.30 and 218,864.20

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Solution

The fourth proportional to 385,270.60, 577,128.30 and 218,864.20 is: 327,854.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,270.60 : 577,128.30 = 218,864.20 : x
  2. Step 2: Convert to fraction form
    385,270.60/577,128.30 = 218,864.20/x
  3. Step 3: Cross multiply
    385,270.60x = 577,128.30 × 218,864.20
  4. Step 4: Simplify right side
    385,270.60x = 126,312,723,676.86
  5. Step 5: Solve for x
    x = 126,312,723,676.86/385,270.60
  6. Step 6: Final answer
    x = 327,854.56

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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.