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Finding the Fourth Proportional to 205,348.80, 307,585.80 and 170,356.80

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Solution

The fourth proportional to 205,348.80, 307,585.80 and 170,356.80 is: 255,172.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,348.80 : 307,585.80 = 170,356.80 : x
  2. Step 2: Convert to fraction form
    205,348.80/307,585.80 = 170,356.80/x
  3. Step 3: Cross multiply
    205,348.80x = 307,585.80 × 170,356.80
  4. Step 4: Simplify right side
    205,348.80x = 52,399,332,613.44
  5. Step 5: Solve for x
    x = 52,399,332,613.44/205,348.80
  6. Step 6: Final answer
    x = 255,172.33

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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.