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Finding the Fourth Proportional to 442,888.38, 611,219.79 and 251,890.38

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Solution

The fourth proportional to 442,888.38, 611,219.79 and 251,890.38 is: 347,627.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,888.38 : 611,219.79 = 251,890.38 : x
  2. Step 2: Convert to fraction form
    442,888.38/611,219.79 = 251,890.38/x
  3. Step 3: Cross multiply
    442,888.38x = 611,219.79 × 251,890.38
  4. Step 4: Simplify right side
    442,888.38x = 153,960,385,166.62
  5. Step 5: Solve for x
    x = 153,960,385,166.62/442,888.38
  6. Step 6: Final answer
    x = 347,627.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.