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Finding the Fourth Proportional to 373,572.60, 515,527.74 and 212,427.66

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Solution

The fourth proportional to 373,572.60, 515,527.74 and 212,427.66 is: 293,148.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,572.60 : 515,527.74 = 212,427.66 : x
  2. Step 2: Convert to fraction form
    373,572.60/515,527.74 = 212,427.66/x
  3. Step 3: Cross multiply
    373,572.60x = 515,527.74 × 212,427.66
  4. Step 4: Simplify right side
    373,572.60x = 109,512,351,473.29
  5. Step 5: Solve for x
    x = 109,512,351,473.29/373,572.60
  6. Step 6: Final answer
    x = 293,148.78

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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.