Home / 330,345.34-455,868.92-192,515.48

Finding the Fourth Proportional to 330,345.34, 455,868.92 and 192,515.48

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Solution

The fourth proportional to 330,345.34, 455,868.92 and 192,515.48 is: 265,666.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,345.34 : 455,868.92 = 192,515.48 : x
  2. Step 2: Convert to fraction form
    330,345.34/455,868.92 = 192,515.48/x
  3. Step 3: Cross multiply
    330,345.34x = 455,868.92 × 192,515.48
  4. Step 4: Simplify right side
    330,345.34x = 87,761,823,950.88
  5. Step 5: Solve for x
    x = 87,761,823,950.88/330,345.34
  6. Step 6: Final answer
    x = 265,666.90

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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.