Home / 397,111.32-548,017.26-215,823.74

Finding the Fourth Proportional to 397,111.32, 548,017.26 and 215,823.74

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Solution

The fourth proportional to 397,111.32, 548,017.26 and 215,823.74 is: 297,838.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,111.32 : 548,017.26 = 215,823.74 : x
  2. Step 2: Convert to fraction form
    397,111.32/548,017.26 = 215,823.74/x
  3. Step 3: Cross multiply
    397,111.32x = 548,017.26 × 215,823.74
  4. Step 4: Simplify right side
    397,111.32x = 118,275,131,897.67
  5. Step 5: Solve for x
    x = 118,275,131,897.67/397,111.32
  6. Step 6: Final answer
    x = 297,838.73

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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.