Home / 373,549.20-515,542.10-212,428.46

Finding the Fourth Proportional to 373,549.20, 515,542.10 and 212,428.46

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Solution

The fourth proportional to 373,549.20, 515,542.10 and 212,428.46 is: 293,176.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,549.20 : 515,542.10 = 212,428.46 : x
  2. Step 2: Convert to fraction form
    373,549.20/515,542.10 = 212,428.46/x
  3. Step 3: Cross multiply
    373,549.20x = 515,542.10 × 212,428.46
  4. Step 4: Simplify right side
    373,549.20x = 109,515,810,728.31
  5. Step 5: Solve for x
    x = 109,515,810,728.31/373,549.20
  6. Step 6: Final answer
    x = 293,176.40

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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.