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Finding the Fourth Proportional to 262,287.40, 392,847.90 and 202,930.60

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Solution

The fourth proportional to 262,287.40, 392,847.90 and 202,930.60 is: 303,944.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,287.40 : 392,847.90 = 202,930.60 : x
  2. Step 2: Convert to fraction form
    262,287.40/392,847.90 = 202,930.60/x
  3. Step 3: Cross multiply
    262,287.40x = 392,847.90 × 202,930.60
  4. Step 4: Simplify right side
    262,287.40x = 79,720,860,055.74
  5. Step 5: Solve for x
    x = 79,720,860,055.74/262,287.40
  6. Step 6: Final answer
    x = 303,944.68

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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.