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Finding the Fourth Proportional to 298,810.60, 448,215.90 and 109,270.60

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Solution

The fourth proportional to 298,810.60, 448,215.90 and 109,270.60 is: 163,905.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,810.60 : 448,215.90 = 109,270.60 : x
  2. Step 2: Convert to fraction form
    298,810.60/448,215.90 = 109,270.60/x
  3. Step 3: Cross multiply
    298,810.60x = 448,215.90 × 109,270.60
  4. Step 4: Simplify right side
    298,810.60x = 48,976,820,322.54
  5. Step 5: Solve for x
    x = 48,976,820,322.54/298,810.60
  6. Step 6: Final answer
    x = 163,905.90

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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.