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Finding the Fourth Proportional to 424,153.44, 636,230.16 and 143,867.52

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Solution

The fourth proportional to 424,153.44, 636,230.16 and 143,867.52 is: 215,801.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,153.44 : 636,230.16 = 143,867.52 : x
  2. Step 2: Convert to fraction form
    424,153.44/636,230.16 = 143,867.52/x
  3. Step 3: Cross multiply
    424,153.44x = 636,230.16 × 143,867.52
  4. Step 4: Simplify right side
    424,153.44x = 91,532,855,268.40
  5. Step 5: Solve for x
    x = 91,532,855,268.40/424,153.44
  6. Step 6: Final answer
    x = 215,801.28

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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.