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Finding the Fourth Proportional to 325,223.45, 487,960.93 and 125,488.39

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Solution

The fourth proportional to 325,223.45, 487,960.93 and 125,488.39 is: 188,281.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,223.45 : 487,960.93 = 125,488.39 : x
  2. Step 2: Convert to fraction form
    325,223.45/487,960.93 = 125,488.39/x
  3. Step 3: Cross multiply
    325,223.45x = 487,960.93 × 125,488.39
  4. Step 4: Simplify right side
    325,223.45x = 61,233,431,693.42
  5. Step 5: Solve for x
    x = 61,233,431,693.42/325,223.45
  6. Step 6: Final answer
    x = 188,281.11

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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.