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Finding the Fourth Proportional to 467,938.58, 645,755.22 and 253,078.64

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Solution

The fourth proportional to 467,938.58, 645,755.22 and 253,078.64 is: 349,248.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,938.58 : 645,755.22 = 253,078.64 : x
  2. Step 2: Convert to fraction form
    467,938.58/645,755.22 = 253,078.64/x
  3. Step 3: Cross multiply
    467,938.58x = 645,755.22 × 253,078.64
  4. Step 4: Simplify right side
    467,938.58x = 163,426,849,621.73
  5. Step 5: Solve for x
    x = 163,426,849,621.73/467,938.58
  6. Step 6: Final answer
    x = 349,248.51

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.