Home / 258,516.20-356,752.34-145,339.76

Finding the Fourth Proportional to 258,516.20, 356,752.34 and 145,339.76

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Solution

The fourth proportional to 258,516.20, 356,752.34 and 145,339.76 is: 200,568.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,516.20 : 356,752.34 = 145,339.76 : x
  2. Step 2: Convert to fraction form
    258,516.20/356,752.34 = 145,339.76/x
  3. Step 3: Cross multiply
    258,516.20x = 356,752.34 × 145,339.76
  4. Step 4: Simplify right side
    258,516.20x = 51,850,296,964.58
  5. Step 5: Solve for x
    x = 51,850,296,964.58/258,516.20
  6. Step 6: Final answer
    x = 200,568.85

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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.