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Finding the Fourth Proportional to 236,649, 355,025.34 and 88,905

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Solution

The fourth proportional to 236,649, 355,025.34 and 88,905 is: 133,376.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,649 : 355,025.34 = 88,905 : x
  2. Step 2: Convert to fraction form
    236,649/355,025.34 = 88,905/x
  3. Step 3: Cross multiply
    236,649x = 355,025.34 × 88,905
  4. Step 4: Simplify right side
    236,649x = 31,563,527,852.70
  5. Step 5: Solve for x
    x = 31,563,527,852.70/236,649
  6. Step 6: Final answer
    x = 133,376.98

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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.