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Finding the Fourth Proportional to 445,809.68, 615,217.29 and 254,827.17

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Solution

The fourth proportional to 445,809.68, 615,217.29 and 254,827.17 is: 351,661.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,809.68 : 615,217.29 = 254,827.17 : x
  2. Step 2: Convert to fraction form
    445,809.68/615,217.29 = 254,827.17/x
  3. Step 3: Cross multiply
    445,809.68x = 615,217.29 × 254,827.17
  4. Step 4: Simplify right side
    445,809.68x = 156,774,080,945.77
  5. Step 5: Solve for x
    x = 156,774,080,945.77/445,809.68
  6. Step 6: Final answer
    x = 351,661.46

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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.