Home / 276,125.34-381,045.36-155,263.52

Finding the Fourth Proportional to 276,125.34, 381,045.36 and 155,263.52

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Solution

The fourth proportional to 276,125.34, 381,045.36 and 155,263.52 is: 214,259.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,125.34 : 381,045.36 = 155,263.52 : x
  2. Step 2: Convert to fraction form
    276,125.34/381,045.36 = 155,263.52/x
  3. Step 3: Cross multiply
    276,125.34x = 381,045.36 × 155,263.52
  4. Step 4: Simplify right side
    276,125.34x = 59,162,443,873.27
  5. Step 5: Solve for x
    x = 59,162,443,873.27/276,125.34
  6. Step 6: Final answer
    x = 214,259.38

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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.