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Finding the Fourth Proportional to 145,297.97, 200,600.66 and 115,204.85

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Solution

The fourth proportional to 145,297.97, 200,600.66 and 115,204.85 is: 159,053.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,297.97 : 200,600.66 = 115,204.85 : x
  2. Step 2: Convert to fraction form
    145,297.97/200,600.66 = 115,204.85/x
  3. Step 3: Cross multiply
    145,297.97x = 200,600.66 × 115,204.85
  4. Step 4: Simplify right side
    145,297.97x = 23,110,168,369.18
  5. Step 5: Solve for x
    x = 23,110,168,369.18/145,297.97
  6. Step 6: Final answer
    x = 159,053.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.