Home / 370,327.92-511,084-209,212.54

Finding the Fourth Proportional to 370,327.92, 511,084 and 209,212.54

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Solution

The fourth proportional to 370,327.92, 511,084 and 209,212.54 is: 288,731.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,327.92 : 511,084 = 209,212.54 : x
  2. Step 2: Convert to fraction form
    370,327.92/511,084 = 209,212.54/x
  3. Step 3: Cross multiply
    370,327.92x = 511,084 × 209,212.54
  4. Step 4: Simplify right side
    370,327.92x = 106,925,181,793.36
  5. Step 5: Solve for x
    x = 106,925,181,793.36/370,327.92
  6. Step 6: Final answer
    x = 288,731.08

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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.