Home / 370,330.43-511,087.46-209,215.05

Finding the Fourth Proportional to 370,330.43, 511,087.46 and 209,215.05

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Solution

The fourth proportional to 370,330.43, 511,087.46 and 209,215.05 is: 288,734.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,330.43 : 511,087.46 = 209,215.05 : x
  2. Step 2: Convert to fraction form
    370,330.43/511,087.46 = 209,215.05/x
  3. Step 3: Cross multiply
    370,330.43x = 511,087.46 × 209,215.05
  4. Step 4: Simplify right side
    370,330.43x = 106,927,187,452.20
  5. Step 5: Solve for x
    x = 106,927,187,452.20/370,330.43
  6. Step 6: Final answer
    x = 288,734.55

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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.