Home / 373,288.13-515,150.57-212,149.97

Finding the Fourth Proportional to 373,288.13, 515,150.57 and 212,149.97

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Solution

The fourth proportional to 373,288.13, 515,150.57 and 212,149.97 is: 292,774.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,288.13 : 515,150.57 = 212,149.97 : x
  2. Step 2: Convert to fraction form
    373,288.13/515,150.57 = 212,149.97/x
  3. Step 3: Cross multiply
    373,288.13x = 515,150.57 × 212,149.97
  4. Step 4: Simplify right side
    373,288.13x = 109,289,175,925.61
  5. Step 5: Solve for x
    x = 109,289,175,925.61/373,288.13
  6. Step 6: Final answer
    x = 292,774.32

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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.