Home / 257,765.24-386,654.33-70,776.20

Finding the Fourth Proportional to 257,765.24, 386,654.33 and 70,776.20

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Solution

The fourth proportional to 257,765.24, 386,654.33 and 70,776.20 is: 106,166.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,765.24 : 386,654.33 = 70,776.20 : x
  2. Step 2: Convert to fraction form
    257,765.24/386,654.33 = 70,776.20/x
  3. Step 3: Cross multiply
    257,765.24x = 386,654.33 × 70,776.20
  4. Step 4: Simplify right side
    257,765.24x = 27,365,921,903.79
  5. Step 5: Solve for x
    x = 27,365,921,903.79/257,765.24
  6. Step 6: Final answer
    x = 106,166.07

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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.