Home / 373,199.55-515,016.27-212,108.10

Finding the Fourth Proportional to 373,199.55, 515,016.27 and 212,108.10

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Solution

The fourth proportional to 373,199.55, 515,016.27 and 212,108.10 is: 292,709.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,199.55 : 515,016.27 = 212,108.10 : x
  2. Step 2: Convert to fraction form
    373,199.55/515,016.27 = 212,108.10/x
  3. Step 3: Cross multiply
    373,199.55x = 515,016.27 × 212,108.10
  4. Step 4: Simplify right side
    373,199.55x = 109,239,122,498.79
  5. Step 5: Solve for x
    x = 109,239,122,498.79/373,199.55
  6. Step 6: Final answer
    x = 292,709.68

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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.