Home / 428,849.92-643,277.12-176,064.96

Finding the Fourth Proportional to 428,849.92, 643,277.12 and 176,064.96

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Solution

The fourth proportional to 428,849.92, 643,277.12 and 176,064.96 is: 264,098.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,849.92 : 643,277.12 = 176,064.96 : x
  2. Step 2: Convert to fraction form
    428,849.92/643,277.12 = 176,064.96/x
  3. Step 3: Cross multiply
    428,849.92x = 643,277.12 × 176,064.96
  4. Step 4: Simplify right side
    428,849.92x = 113,258,560,401.72
  5. Step 5: Solve for x
    x = 113,258,560,401.72/428,849.92
  6. Step 6: Final answer
    x = 264,098.36

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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.