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Finding the Fourth Proportional to 332,830.80, 499,246.20 and 258,181.20

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Solution

The fourth proportional to 332,830.80, 499,246.20 and 258,181.20 is: 387,271.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    332,830.80 : 499,246.20 = 258,181.20 : x
  2. Step 2: Convert to fraction form
    332,830.80/499,246.20 = 258,181.20/x
  3. Step 3: Cross multiply
    332,830.80x = 499,246.20 × 258,181.20
  4. Step 4: Simplify right side
    332,830.80x = 128,895,983,011.44
  5. Step 5: Solve for x
    x = 128,895,983,011.44/332,830.80
  6. Step 6: Final answer
    x = 387,271.80

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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.