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Finding the Fourth Proportional to 424,647.38, 637,069.49 and 144,164.63

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Solution

The fourth proportional to 424,647.38, 637,069.49 and 144,164.63 is: 216,280.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,647.38 : 637,069.49 = 144,164.63 : x
  2. Step 2: Convert to fraction form
    424,647.38/637,069.49 = 144,164.63/x
  3. Step 3: Cross multiply
    424,647.38x = 637,069.49 × 144,164.63
  4. Step 4: Simplify right side
    424,647.38x = 91,842,883,403.97
  5. Step 5: Solve for x
    x = 91,842,883,403.97/424,647.38
  6. Step 6: Final answer
    x = 216,280.35

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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.