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Finding the Fourth Proportional to 238,338, 357,507 and 88,615.98

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Solution

The fourth proportional to 238,338, 357,507 and 88,615.98 is: 132,923.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    238,338 : 357,507 = 88,615.98 : x
  2. Step 2: Convert to fraction form
    238,338/357,507 = 88,615.98/x
  3. Step 3: Cross multiply
    238,338x = 357,507 × 88,615.98
  4. Step 4: Simplify right side
    238,338x = 31,680,833,161.86
  5. Step 5: Solve for x
    x = 31,680,833,161.86/238,338
  6. Step 6: Final answer
    x = 132,923.97

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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.