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Finding the Fourth Proportional to 341,382.20, 512,074.20 and 88,664.78

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Solution

The fourth proportional to 341,382.20, 512,074.20 and 88,664.78 is: 132,997.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,382.20 : 512,074.20 = 88,664.78 : x
  2. Step 2: Convert to fraction form
    341,382.20/512,074.20 = 88,664.78/x
  3. Step 3: Cross multiply
    341,382.20x = 512,074.20 × 88,664.78
  4. Step 4: Simplify right side
    341,382.20x = 45,402,945,018.94
  5. Step 5: Solve for x
    x = 45,402,945,018.94/341,382.20
  6. Step 6: Final answer
    x = 132,997.40

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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.