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Finding the Fourth Proportional to 638,329.79, 957,527.49 and 165,019.25

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Solution

The fourth proportional to 638,329.79, 957,527.49 and 165,019.25 is: 247,537.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,329.79 : 957,527.49 = 165,019.25 : x
  2. Step 2: Convert to fraction form
    638,329.79/957,527.49 = 165,019.25/x
  3. Step 3: Cross multiply
    638,329.79x = 957,527.49 × 165,019.25
  4. Step 4: Simplify right side
    638,329.79x = 158,010,468,254.18
  5. Step 5: Solve for x
    x = 158,010,468,254.18/638,329.79
  6. Step 6: Final answer
    x = 247,537.36

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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.