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Finding the Fourth Proportional to 245,627.20, 368,440.80 and 216,596.80

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Solution

The fourth proportional to 245,627.20, 368,440.80 and 216,596.80 is: 324,895.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,627.20 : 368,440.80 = 216,596.80 : x
  2. Step 2: Convert to fraction form
    245,627.20/368,440.80 = 216,596.80/x
  3. Step 3: Cross multiply
    245,627.20x = 368,440.80 × 216,596.80
  4. Step 4: Simplify right side
    245,627.20x = 79,803,098,269.44
  5. Step 5: Solve for x
    x = 79,803,098,269.44/245,627.20
  6. Step 6: Final answer
    x = 324,895.20

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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.