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Finding the Fourth Proportional to 288,347.82, 397,953.84 and 239,864.16

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Solution

The fourth proportional to 288,347.82, 397,953.84 and 239,864.16 is: 331,040.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,347.82 : 397,953.84 = 239,864.16 : x
  2. Step 2: Convert to fraction form
    288,347.82/397,953.84 = 239,864.16/x
  3. Step 3: Cross multiply
    288,347.82x = 397,953.84 × 239,864.16
  4. Step 4: Simplify right side
    288,347.82x = 95,454,863,550.37
  5. Step 5: Solve for x
    x = 95,454,863,550.37/288,347.82
  6. Step 6: Final answer
    x = 331,040.70

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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.