Home / 397,470.72-548,509.20-227,705.52

Finding the Fourth Proportional to 397,470.72, 548,509.20 and 227,705.52

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Solution

The fourth proportional to 397,470.72, 548,509.20 and 227,705.52 is: 314,233.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,470.72 : 548,509.20 = 227,705.52 : x
  2. Step 2: Convert to fraction form
    397,470.72/548,509.20 = 227,705.52/x
  3. Step 3: Cross multiply
    397,470.72x = 548,509.20 × 227,705.52
  4. Step 4: Simplify right side
    397,470.72x = 124,898,572,610.78
  5. Step 5: Solve for x
    x = 124,898,572,610.78/397,470.72
  6. Step 6: Final answer
    x = 314,233.39

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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.