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Finding the Fourth Proportional to 397,379.32, 548,344.20 and 225,263.32

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Solution

The fourth proportional to 397,379.32, 548,344.20 and 225,263.32 is: 310,841.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,379.32 : 548,344.20 = 225,263.32 : x
  2. Step 2: Convert to fraction form
    397,379.32/548,344.20 = 225,263.32/x
  3. Step 3: Cross multiply
    397,379.32x = 548,344.20 × 225,263.32
  4. Step 4: Simplify right side
    397,379.32x = 123,521,834,994.74
  5. Step 5: Solve for x
    x = 123,521,834,994.74/397,379.32
  6. Step 6: Final answer
    x = 310,841.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.