Home / 287,260.20-430,958.52-144,755.28

Finding the Fourth Proportional to 287,260.20, 430,958.52 and 144,755.28

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Solution

The fourth proportional to 287,260.20, 430,958.52 and 144,755.28 is: 217,167.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,260.20 : 430,958.52 = 144,755.28 : x
  2. Step 2: Convert to fraction form
    287,260.20/430,958.52 = 144,755.28/x
  3. Step 3: Cross multiply
    287,260.20x = 430,958.52 × 144,755.28
  4. Step 4: Simplify right side
    287,260.20x = 62,383,521,230.99
  5. Step 5: Solve for x
    x = 62,383,521,230.99/287,260.20
  6. Step 6: Final answer
    x = 217,167.30

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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.