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Finding the Fourth Proportional to 245,999.40, 369,063.90 and 88,211.40

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Solution

The fourth proportional to 245,999.40, 369,063.90 and 88,211.40 is: 132,340.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,999.40 : 369,063.90 = 88,211.40 : x
  2. Step 2: Convert to fraction form
    245,999.40/369,063.90 = 88,211.40/x
  3. Step 3: Cross multiply
    245,999.40x = 369,063.90 × 88,211.40
  4. Step 4: Simplify right side
    245,999.40x = 32,555,643,308.46
  5. Step 5: Solve for x
    x = 32,555,643,308.46/245,999.40
  6. Step 6: Final answer
    x = 132,340.34

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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.