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Finding the Fourth Proportional to 331,079.40, 496,230.30 and 153,210.69

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Solution

The fourth proportional to 331,079.40, 496,230.30 and 153,210.69 is: 229,636.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,079.40 : 496,230.30 = 153,210.69 : x
  2. Step 2: Convert to fraction form
    331,079.40/496,230.30 = 153,210.69/x
  3. Step 3: Cross multiply
    331,079.40x = 496,230.30 × 153,210.69
  4. Step 4: Simplify right side
    331,079.40x = 76,027,786,661.91
  5. Step 5: Solve for x
    x = 76,027,786,661.91/331,079.40
  6. Step 6: Final answer
    x = 229,636.11

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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.