Home / 278,894.04-418,512.78-110,385.69

Finding the Fourth Proportional to 278,894.04, 418,512.78 and 110,385.69

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Solution

The fourth proportional to 278,894.04, 418,512.78 and 110,385.69 is: 165,646.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,894.04 : 418,512.78 = 110,385.69 : x
  2. Step 2: Convert to fraction form
    278,894.04/418,512.78 = 110,385.69/x
  3. Step 3: Cross multiply
    278,894.04x = 418,512.78 × 110,385.69
  4. Step 4: Simplify right side
    278,894.04x = 46,197,821,994.12
  5. Step 5: Solve for x
    x = 46,197,821,994.12/278,894.04
  6. Step 6: Final answer
    x = 165,646.50

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1.5x scale

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.