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Finding the Fourth Proportional to 445,809.80, 615,217.46 and 254,827.29

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Solution

The fourth proportional to 445,809.80, 615,217.46 and 254,827.29 is: 351,661.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,809.80 : 615,217.46 = 254,827.29 : x
  2. Step 2: Convert to fraction form
    445,809.80/615,217.46 = 254,827.29/x
  3. Step 3: Cross multiply
    445,809.80x = 615,217.46 × 254,827.29
  4. Step 4: Simplify right side
    445,809.80x = 156,774,199,125.41
  5. Step 5: Solve for x
    x = 156,774,199,125.41/445,809.80
  6. Step 6: Final answer
    x = 351,661.62

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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.