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Finding the Fourth Proportional to 383,317.80, 575,195.40 and 146,830.20

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Solution

The fourth proportional to 383,317.80, 575,195.40 and 146,830.20 is: 220,329.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,317.80 : 575,195.40 = 146,830.20 : x
  2. Step 2: Convert to fraction form
    383,317.80/575,195.40 = 146,830.20/x
  3. Step 3: Cross multiply
    383,317.80x = 575,195.40 × 146,830.20
  4. Step 4: Simplify right side
    383,317.80x = 84,456,055,621.08
  5. Step 5: Solve for x
    x = 84,456,055,621.08/383,317.80
  6. Step 6: Final answer
    x = 220,329.07

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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.