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Finding the Fourth Proportional to 306,850.45, 460,061.76 and 135,979.12

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Solution

The fourth proportional to 306,850.45, 460,061.76 and 135,979.12 is: 203,873.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,850.45 : 460,061.76 = 135,979.12 : x
  2. Step 2: Convert to fraction form
    306,850.45/460,061.76 = 135,979.12/x
  3. Step 3: Cross multiply
    306,850.45x = 460,061.76 × 135,979.12
  4. Step 4: Simplify right side
    306,850.45x = 62,558,792,223.34
  5. Step 5: Solve for x
    x = 62,558,792,223.34/306,850.45
  6. Step 6: Final answer
    x = 203,873.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.