Home / 373,645.12-515,641.60-212,523.36

Finding the Fourth Proportional to 373,645.12, 515,641.60 and 212,523.36

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Solution

The fourth proportional to 373,645.12, 515,641.60 and 212,523.36 is: 293,288.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,645.12 : 515,641.60 = 212,523.36 : x
  2. Step 2: Convert to fraction form
    373,645.12/515,641.60 = 212,523.36/x
  3. Step 3: Cross multiply
    373,645.12x = 515,641.60 × 212,523.36
  4. Step 4: Simplify right side
    373,645.12x = 109,585,885,387.78
  5. Step 5: Solve for x
    x = 109,585,885,387.78/373,645.12
  6. Step 6: Final answer
    x = 293,288.68

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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.