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Finding the Fourth Proportional to 415,173.56, 573,046.40 and 270,340.85

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Solution

The fourth proportional to 415,173.56, 573,046.40 and 270,340.85 is: 373,139.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,173.56 : 573,046.40 = 270,340.85 : x
  2. Step 2: Convert to fraction form
    415,173.56/573,046.40 = 270,340.85/x
  3. Step 3: Cross multiply
    415,173.56x = 573,046.40 × 270,340.85
  4. Step 4: Simplify right side
    415,173.56x = 154,917,849,513.74
  5. Step 5: Solve for x
    x = 154,917,849,513.74/415,173.56
  6. Step 6: Final answer
    x = 373,139.97

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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.