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Finding the Fourth Proportional to 415,520.66, 573,290.70 and 254,207.54

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Solution

The fourth proportional to 415,520.66, 573,290.70 and 254,207.54 is: 350,728.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    415,520.66 : 573,290.70 = 254,207.54 : x
  2. Step 2: Convert to fraction form
    415,520.66/573,290.70 = 254,207.54/x
  3. Step 3: Cross multiply
    415,520.66x = 573,290.70 × 254,207.54
  4. Step 4: Simplify right side
    415,520.66x = 145,734,818,551.88
  5. Step 5: Solve for x
    x = 145,734,818,551.88/415,520.66
  6. Step 6: Final answer
    x = 350,728.21

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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.