Home / 198,255.45-272,901.09-171,117.65

Finding the Fourth Proportional to 198,255.45, 272,901.09 and 171,117.65

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Solution

The fourth proportional to 198,255.45, 272,901.09 and 171,117.65 is: 235,545.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,255.45 : 272,901.09 = 171,117.65 : x
  2. Step 2: Convert to fraction form
    198,255.45/272,901.09 = 171,117.65/x
  3. Step 3: Cross multiply
    198,255.45x = 272,901.09 × 171,117.65
  4. Step 4: Simplify right side
    198,255.45x = 46,698,191,838.73
  5. Step 5: Solve for x
    x = 46,698,191,838.73/198,255.45
  6. Step 6: Final answer
    x = 235,545.56

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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.