Home / 330,320.36-455,870.18-187,105.96

Finding the Fourth Proportional to 330,320.36, 455,870.18 and 187,105.96

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Solution

The fourth proportional to 330,320.36, 455,870.18 and 187,105.96 is: 258,222.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,320.36 : 455,870.18 = 187,105.96 : x
  2. Step 2: Convert to fraction form
    330,320.36/455,870.18 = 187,105.96/x
  3. Step 3: Cross multiply
    330,320.36x = 455,870.18 × 187,105.96
  4. Step 4: Simplify right side
    330,320.36x = 85,296,027,664.27
  5. Step 5: Solve for x
    x = 85,296,027,664.27/330,320.36
  6. Step 6: Final answer
    x = 258,222.13

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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.