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Finding the Fourth Proportional to 288,085.80, 397,521.73 and 160,766.76

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Solution

The fourth proportional to 288,085.80, 397,521.73 and 160,766.76 is: 221,837.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,085.80 : 397,521.73 = 160,766.76 : x
  2. Step 2: Convert to fraction form
    288,085.80/397,521.73 = 160,766.76/x
  3. Step 3: Cross multiply
    288,085.80x = 397,521.73 × 160,766.76
  4. Step 4: Simplify right side
    288,085.80x = 63,908,279,757.86
  5. Step 5: Solve for x
    x = 63,908,279,757.86/288,085.80
  6. Step 6: Final answer
    x = 221,837.66

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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.