Home / 276,291.16-381,281.20-155,432.52

Finding the Fourth Proportional to 276,291.16, 381,281.20 and 155,432.52

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Solution

The fourth proportional to 276,291.16, 381,281.20 and 155,432.52 is: 214,496.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,291.16 : 381,281.20 = 155,432.52 : x
  2. Step 2: Convert to fraction form
    276,291.16/381,281.20 = 155,432.52/x
  3. Step 3: Cross multiply
    276,291.16x = 381,281.20 × 155,432.52
  4. Step 4: Simplify right side
    276,291.16x = 59,263,497,744.62
  5. Step 5: Solve for x
    x = 59,263,497,744.62/276,291.16
  6. Step 6: Final answer
    x = 214,496.54

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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.