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Finding the Fourth Proportional to 310,560.88, 428,520.51 and 174,575.98

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Solution

The fourth proportional to 310,560.88, 428,520.51 and 174,575.98 is: 240,884.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,560.88 : 428,520.51 = 174,575.98 : x
  2. Step 2: Convert to fraction form
    310,560.88/428,520.51 = 174,575.98/x
  3. Step 3: Cross multiply
    310,560.88x = 428,520.51 × 174,575.98
  4. Step 4: Simplify right side
    310,560.88x = 74,809,387,983.35
  5. Step 5: Solve for x
    x = 74,809,387,983.35/310,560.88
  6. Step 6: Final answer
    x = 240,884.78

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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.