Home / 276,989.24-382,239.77-156,128.24

Finding the Fourth Proportional to 276,989.24, 382,239.77 and 156,128.24

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Solution

The fourth proportional to 276,989.24, 382,239.77 and 156,128.24 is: 215,453.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,989.24 : 382,239.77 = 156,128.24 : x
  2. Step 2: Convert to fraction form
    276,989.24/382,239.77 = 156,128.24/x
  3. Step 3: Cross multiply
    276,989.24x = 382,239.77 × 156,128.24
  4. Step 4: Simplify right side
    276,989.24x = 59,678,422,723.06
  5. Step 5: Solve for x
    x = 59,678,422,723.06/276,989.24
  6. Step 6: Final answer
    x = 215,453.94

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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.