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Finding the Fourth Proportional to 373,644.92, 515,641.36 and 212,523.16

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Solution

The fourth proportional to 373,644.92, 515,641.36 and 212,523.16 is: 293,288.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,644.92 : 515,641.36 = 212,523.16 : x
  2. Step 2: Convert to fraction form
    373,644.92/515,641.36 = 212,523.16/x
  3. Step 3: Cross multiply
    373,644.92x = 515,641.36 × 212,523.16
  4. Step 4: Simplify right side
    373,644.92x = 109,585,731,253.90
  5. Step 5: Solve for x
    x = 109,585,731,253.90/373,644.92
  6. Step 6: Final answer
    x = 293,288.43

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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.