Home / 278,300.13-417,169.74-109,755.33

Finding the Fourth Proportional to 278,300.13, 417,169.74 and 109,755.33

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Solution

The fourth proportional to 278,300.13, 417,169.74 and 109,755.33 is: 164,522.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,300.13 : 417,169.74 = 109,755.33 : x
  2. Step 2: Convert to fraction form
    278,300.13/417,169.74 = 109,755.33/x
  3. Step 3: Cross multiply
    278,300.13x = 417,169.74 × 109,755.33
  4. Step 4: Simplify right side
    278,300.13x = 45,786,602,479.71
  5. Step 5: Solve for x
    x = 45,786,602,479.71/278,300.13
  6. Step 6: Final answer
    x = 164,522.39

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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.