Home / 261,780.84-361,247.67-159,976.53

Finding the Fourth Proportional to 261,780.84, 361,247.67 and 159,976.53

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Solution

The fourth proportional to 261,780.84, 361,247.67 and 159,976.53 is: 220,761.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,780.84 : 361,247.67 = 159,976.53 : x
  2. Step 2: Convert to fraction form
    261,780.84/361,247.67 = 159,976.53/x
  3. Step 3: Cross multiply
    261,780.84x = 361,247.67 × 159,976.53
  4. Step 4: Simplify right side
    261,780.84x = 57,791,148,717.19
  5. Step 5: Solve for x
    x = 57,791,148,717.19/261,780.84
  6. Step 6: Final answer
    x = 220,761.57

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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.