Home / 442,904.70-664,357.05-218,307.90

Finding the Fourth Proportional to 442,904.70, 664,357.05 and 218,307.90

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Solution

The fourth proportional to 442,904.70, 664,357.05 and 218,307.90 is: 327,461.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,904.70 : 664,357.05 = 218,307.90 : x
  2. Step 2: Convert to fraction form
    442,904.70/664,357.05 = 218,307.90/x
  3. Step 3: Cross multiply
    442,904.70x = 664,357.05 × 218,307.90
  4. Step 4: Simplify right side
    442,904.70x = 145,034,392,435.70
  5. Step 5: Solve for x
    x = 145,034,392,435.70/442,904.70
  6. Step 6: Final answer
    x = 327,461.85

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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.