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Finding the Fourth Proportional to 262,120.39, 392,892.78 and 149,555.20

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Solution

The fourth proportional to 262,120.39, 392,892.78 and 149,555.20 is: 224,168.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,120.39 : 392,892.78 = 149,555.20 : x
  2. Step 2: Convert to fraction form
    262,120.39/392,892.78 = 149,555.20/x
  3. Step 3: Cross multiply
    262,120.39x = 392,892.78 × 149,555.20
  4. Step 4: Simplify right side
    262,120.39x = 58,759,156,326.99
  5. Step 5: Solve for x
    x = 58,759,156,326.99/262,120.39
  6. Step 6: Final answer
    x = 224,168.58

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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.