Home / 442,904.90-664,357.35-162,385.70

Finding the Fourth Proportional to 442,904.90, 664,357.35 and 162,385.70

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Solution

The fourth proportional to 442,904.90, 664,357.35 and 162,385.70 is: 243,578.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,904.90 : 664,357.35 = 162,385.70 : x
  2. Step 2: Convert to fraction form
    442,904.90/664,357.35 = 162,385.70/x
  3. Step 3: Cross multiply
    442,904.90x = 664,357.35 × 162,385.70
  4. Step 4: Simplify right side
    442,904.90x = 107,882,133,329.90
  5. Step 5: Solve for x
    x = 107,882,133,329.90/442,904.90
  6. Step 6: Final answer
    x = 243,578.55

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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.