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Finding the Fourth Proportional to 224,391.87, 309,661.65 and 122,419.62

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Solution

The fourth proportional to 224,391.87, 309,661.65 and 122,419.62 is: 168,939.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,391.87 : 309,661.65 = 122,419.62 : x
  2. Step 2: Convert to fraction form
    224,391.87/309,661.65 = 122,419.62/x
  3. Step 3: Cross multiply
    224,391.87x = 309,661.65 × 122,419.62
  4. Step 4: Simplify right side
    224,391.87x = 37,908,661,521.57
  5. Step 5: Solve for x
    x = 37,908,661,521.57/224,391.87
  6. Step 6: Final answer
    x = 168,939.55

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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.