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Finding the Fourth Proportional to 445,940.95, 615,400.18 and 241,991.91

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Solution

The fourth proportional to 445,940.95, 615,400.18 and 241,991.91 is: 333,949.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,940.95 : 615,400.18 = 241,991.91 : x
  2. Step 2: Convert to fraction form
    445,940.95/615,400.18 = 241,991.91/x
  3. Step 3: Cross multiply
    445,940.95x = 615,400.18 × 241,991.91
  4. Step 4: Simplify right side
    445,940.95x = 148,921,864,367.56
  5. Step 5: Solve for x
    x = 148,921,864,367.56/445,940.95
  6. Step 6: Final answer
    x = 333,949.74

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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.