Home / 276,029.60-380,897.44-155,161.76

Finding the Fourth Proportional to 276,029.60, 380,897.44 and 155,161.76

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Solution

The fourth proportional to 276,029.60, 380,897.44 and 155,161.76 is: 214,110.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,029.60 : 380,897.44 = 155,161.76 : x
  2. Step 2: Convert to fraction form
    276,029.60/380,897.44 = 155,161.76/x
  3. Step 3: Cross multiply
    276,029.60x = 380,897.44 × 155,161.76
  4. Step 4: Simplify right side
    276,029.60x = 59,100,717,169.89
  5. Step 5: Solve for x
    x = 59,100,717,169.89/276,029.60
  6. Step 6: Final answer
    x = 214,110.07

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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.