Home / 250,178.48-345,214.68-199,320.20

Finding the Fourth Proportional to 250,178.48, 345,214.68 and 199,320.20

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Solution

The fourth proportional to 250,178.48, 345,214.68 and 199,320.20 is: 275,036.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,178.48 : 345,214.68 = 199,320.20 : x
  2. Step 2: Convert to fraction form
    250,178.48/345,214.68 = 199,320.20/x
  3. Step 3: Cross multiply
    250,178.48x = 345,214.68 × 199,320.20
  4. Step 4: Simplify right side
    250,178.48x = 68,808,259,060.54
  5. Step 5: Solve for x
    x = 68,808,259,060.54/250,178.48
  6. Step 6: Final answer
    x = 275,036.68

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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.