Home / 370,648.18-511,489.92-200,878.66

Finding the Fourth Proportional to 370,648.18, 511,489.92 and 200,878.66

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Solution

The fourth proportional to 370,648.18, 511,489.92 and 200,878.66 is: 277,210.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,648.18 : 511,489.92 = 200,878.66 : x
  2. Step 2: Convert to fraction form
    370,648.18/511,489.92 = 200,878.66/x
  3. Step 3: Cross multiply
    370,648.18x = 511,489.92 × 200,878.66
  4. Step 4: Simplify right side
    370,648.18x = 102,747,409,733.11
  5. Step 5: Solve for x
    x = 102,747,409,733.11/370,648.18
  6. Step 6: Final answer
    x = 277,210.07

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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.