Home / 221,767.34-306,039.05-119,792.80

Finding the Fourth Proportional to 221,767.34, 306,039.05 and 119,792.80

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Solution

The fourth proportional to 221,767.34, 306,039.05 and 119,792.80 is: 165,314.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,767.34 : 306,039.05 = 119,792.80 : x
  2. Step 2: Convert to fraction form
    221,767.34/306,039.05 = 119,792.80/x
  3. Step 3: Cross multiply
    221,767.34x = 306,039.05 × 119,792.80
  4. Step 4: Simplify right side
    221,767.34x = 36,661,274,941.65
  5. Step 5: Solve for x
    x = 36,661,274,941.65/221,767.34
  6. Step 6: Final answer
    x = 165,314.13

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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.