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Finding the Fourth Proportional to 356,254.80, 534,468.60 and 251,278.80

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Solution

The fourth proportional to 356,254.80, 534,468.60 and 251,278.80 is: 376,979.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,254.80 : 534,468.60 = 251,278.80 : x
  2. Step 2: Convert to fraction form
    356,254.80/534,468.60 = 251,278.80/x
  3. Step 3: Cross multiply
    356,254.80x = 534,468.60 × 251,278.80
  4. Step 4: Simplify right side
    356,254.80x = 134,300,628,445.68
  5. Step 5: Solve for x
    x = 134,300,628,445.68/356,254.80
  6. Step 6: Final answer
    x = 376,979.14

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.