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Finding the Fourth Proportional to 383,839.80, 575,273.70 and 146,866.20

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Solution

The fourth proportional to 383,839.80, 575,273.70 and 146,866.20 is: 220,113.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,839.80 : 575,273.70 = 146,866.20 : x
  2. Step 2: Convert to fraction form
    383,839.80/575,273.70 = 146,866.20/x
  3. Step 3: Cross multiply
    383,839.80x = 575,273.70 × 146,866.20
  4. Step 4: Simplify right side
    383,839.80x = 84,488,262,278.94
  5. Step 5: Solve for x
    x = 84,488,262,278.94/383,839.80
  6. Step 6: Final answer
    x = 220,113.34

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1.5x scale

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.