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Finding the Fourth Proportional to 451,053.60, 676,509.84 and 198,278.16

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Solution

The fourth proportional to 451,053.60, 676,509.84 and 198,278.16 is: 297,386.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,053.60 : 676,509.84 = 198,278.16 : x
  2. Step 2: Convert to fraction form
    451,053.60/676,509.84 = 198,278.16/x
  3. Step 3: Cross multiply
    451,053.60x = 676,509.84 × 198,278.16
  4. Step 4: Simplify right side
    451,053.60x = 134,137,126,297.09
  5. Step 5: Solve for x
    x = 134,137,126,297.09/451,053.60
  6. Step 6: Final answer
    x = 297,386.22

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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.