Home / 255,279.90-352,382.66-200,689.65

Finding the Fourth Proportional to 255,279.90, 352,382.66 and 200,689.65

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Solution

The fourth proportional to 255,279.90, 352,382.66 and 200,689.65 is: 277,027.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,279.90 : 352,382.66 = 200,689.65 : x
  2. Step 2: Convert to fraction form
    255,279.90/352,382.66 = 200,689.65/x
  3. Step 3: Cross multiply
    255,279.90x = 352,382.66 × 200,689.65
  4. Step 4: Simplify right side
    255,279.90x = 70,719,552,199.74
  5. Step 5: Solve for x
    x = 70,719,552,199.74/255,279.90
  6. Step 6: Final answer
    x = 277,027.50

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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.