Home / 280,914.06-387,864.48-173,631.18

Finding the Fourth Proportional to 280,914.06, 387,864.48 and 173,631.18

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Solution

The fourth proportional to 280,914.06, 387,864.48 and 173,631.18 is: 239,736.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,914.06 : 387,864.48 = 173,631.18 : x
  2. Step 2: Convert to fraction form
    280,914.06/387,864.48 = 173,631.18/x
  3. Step 3: Cross multiply
    280,914.06x = 387,864.48 × 173,631.18
  4. Step 4: Simplify right side
    280,914.06x = 67,345,367,342.49
  5. Step 5: Solve for x
    x = 67,345,367,342.49/280,914.06
  6. Step 6: Final answer
    x = 239,736.55

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1.5x scale

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.