Home / 397,148.73-548,070.75-215,860.56

Finding the Fourth Proportional to 397,148.73, 548,070.75 and 215,860.56

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Solution

The fourth proportional to 397,148.73, 548,070.75 and 215,860.56 is: 297,890.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,148.73 : 548,070.75 = 215,860.56 : x
  2. Step 2: Convert to fraction form
    397,148.73/548,070.75 = 215,860.56/x
  3. Step 3: Cross multiply
    397,148.73x = 548,070.75 × 215,860.56
  4. Step 4: Simplify right side
    397,148.73x = 118,306,859,014.62
  5. Step 5: Solve for x
    x = 118,306,859,014.62/397,148.73
  6. Step 6: Final answer
    x = 297,890.56

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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.