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Finding the Fourth Proportional to 278,040, 383,693.04 and 150,712.32

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Solution

The fourth proportional to 278,040, 383,693.04 and 150,712.32 is: 207,981.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,040 : 383,693.04 = 150,712.32 : x
  2. Step 2: Convert to fraction form
    278,040/383,693.04 = 150,712.32/x
  3. Step 3: Cross multiply
    278,040x = 383,693.04 × 150,712.32
  4. Step 4: Simplify right side
    278,040x = 57,827,268,226.25
  5. Step 5: Solve for x
    x = 57,827,268,226.25/278,040
  6. Step 6: Final answer
    x = 207,981.83

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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.