Home / 276,790.47-381,972.02-155,933.22

Finding the Fourth Proportional to 276,790.47, 381,972.02 and 155,933.22

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Solution

The fourth proportional to 276,790.47, 381,972.02 and 155,933.22 is: 215,188.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,790.47 : 381,972.02 = 155,933.22 : x
  2. Step 2: Convert to fraction form
    276,790.47/381,972.02 = 155,933.22/x
  3. Step 3: Cross multiply
    276,790.47x = 381,972.02 × 155,933.22
  4. Step 4: Simplify right side
    276,790.47x = 59,562,126,248.84
  5. Step 5: Solve for x
    x = 59,562,126,248.84/276,790.47
  6. Step 6: Final answer
    x = 215,188.50

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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.