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Finding the Fourth Proportional to 278,058.60, 417,087.90 and 248,534.10

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Solution

The fourth proportional to 278,058.60, 417,087.90 and 248,534.10 is: 372,801.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,058.60 : 417,087.90 = 248,534.10 : x
  2. Step 2: Convert to fraction form
    278,058.60/417,087.90 = 248,534.10/x
  3. Step 3: Cross multiply
    278,058.60x = 417,087.90 × 248,534.10
  4. Step 4: Simplify right side
    278,058.60x = 103,660,565,847.39
  5. Step 5: Solve for x
    x = 103,660,565,847.39/278,058.60
  6. Step 6: Final answer
    x = 372,801.15

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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.