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Finding the Fourth Proportional to 344,400.43, 475,278.28 and 189,358.28

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Solution

The fourth proportional to 344,400.43, 475,278.28 and 189,358.28 is: 261,317.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,400.43 : 475,278.28 = 189,358.28 : x
  2. Step 2: Convert to fraction form
    344,400.43/475,278.28 = 189,358.28/x
  3. Step 3: Cross multiply
    344,400.43x = 475,278.28 × 189,358.28
  4. Step 4: Simplify right side
    344,400.43x = 89,997,877,000.38
  5. Step 5: Solve for x
    x = 89,997,877,000.38/344,400.43
  6. Step 6: Final answer
    x = 261,317.55

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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.