Home / 373,278.18-515,101.68-212,110.86

Finding the Fourth Proportional to 373,278.18, 515,101.68 and 212,110.86

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Solution

The fourth proportional to 373,278.18, 515,101.68 and 212,110.86 is: 292,700.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,278.18 : 515,101.68 = 212,110.86 : x
  2. Step 2: Convert to fraction form
    373,278.18/515,101.68 = 212,110.86/x
  3. Step 3: Cross multiply
    373,278.18x = 515,101.68 × 212,110.86
  4. Step 4: Simplify right side
    373,278.18x = 109,258,660,332.25
  5. Step 5: Solve for x
    x = 109,258,660,332.25/373,278.18
  6. Step 6: Final answer
    x = 292,700.37

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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.