Home / 261,723.72-361,182-154,287.33

Finding the Fourth Proportional to 261,723.72, 361,182 and 154,287.33

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Solution

The fourth proportional to 261,723.72, 361,182 and 154,287.33 is: 212,918.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,723.72 : 361,182 = 154,287.33 : x
  2. Step 2: Convert to fraction form
    261,723.72/361,182 = 154,287.33/x
  3. Step 3: Cross multiply
    261,723.72x = 361,182 × 154,287.33
  4. Step 4: Simplify right side
    261,723.72x = 55,725,806,424.06
  5. Step 5: Solve for x
    x = 55,725,806,424.06/261,723.72
  6. Step 6: Final answer
    x = 212,918.44

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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.