Home / 289,063.22-398,876.03-159,981.18

Finding the Fourth Proportional to 289,063.22, 398,876.03 and 159,981.18

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Solution

The fourth proportional to 289,063.22, 398,876.03 and 159,981.18 is: 220,756.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,063.22 : 398,876.03 = 159,981.18 : x
  2. Step 2: Convert to fraction form
    289,063.22/398,876.03 = 159,981.18/x
  3. Step 3: Cross multiply
    289,063.22x = 398,876.03 × 159,981.18
  4. Step 4: Simplify right side
    289,063.22x = 63,812,656,257.35
  5. Step 5: Solve for x
    x = 63,812,656,257.35/289,063.22
  6. Step 6: Final answer
    x = 220,756.75

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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.