Home / 442,826.40-664,336.80-218,294.40

Finding the Fourth Proportional to 442,826.40, 664,336.80 and 218,294.40

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Solution

The fourth proportional to 442,826.40, 664,336.80 and 218,294.40 is: 327,489.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,826.40 : 664,336.80 = 218,294.40 : x
  2. Step 2: Convert to fraction form
    442,826.40/664,336.80 = 218,294.40/x
  3. Step 3: Cross multiply
    442,826.40x = 664,336.80 × 218,294.40
  4. Step 4: Simplify right side
    442,826.40x = 145,021,003,153.92
  5. Step 5: Solve for x
    x = 145,021,003,153.92/442,826.40
  6. Step 6: Final answer
    x = 327,489.52

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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.