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Finding the Fourth Proportional to 201,498.10, 302,247.15 and 90,906.10

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Solution

The fourth proportional to 201,498.10, 302,247.15 and 90,906.10 is: 136,359.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,498.10 : 302,247.15 = 90,906.10 : x
  2. Step 2: Convert to fraction form
    201,498.10/302,247.15 = 90,906.10/x
  3. Step 3: Cross multiply
    201,498.10x = 302,247.15 × 90,906.10
  4. Step 4: Simplify right side
    201,498.10x = 27,476,109,642.62
  5. Step 5: Solve for x
    x = 27,476,109,642.62/201,498.10
  6. Step 6: Final answer
    x = 136,359.15

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1.5x scale

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.