Home / 381,529.76-572,070-144,889.28

Finding the Fourth Proportional to 381,529.76, 572,070 and 144,889.28

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Solution

The fourth proportional to 381,529.76, 572,070 and 144,889.28 is: 217,248.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,529.76 : 572,070 = 144,889.28 : x
  2. Step 2: Convert to fraction form
    381,529.76/572,070 = 144,889.28/x
  3. Step 3: Cross multiply
    381,529.76x = 572,070 × 144,889.28
  4. Step 4: Simplify right side
    381,529.76x = 82,886,810,409.60
  5. Step 5: Solve for x
    x = 82,886,810,409.60/381,529.76
  6. Step 6: Final answer
    x = 217,248.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.