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Finding the Fourth Proportional to 201,215.90, 301,386.45 and 122,192.30

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Solution

The fourth proportional to 201,215.90, 301,386.45 and 122,192.30 is: 183,022.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,215.90 : 301,386.45 = 122,192.30 : x
  2. Step 2: Convert to fraction form
    201,215.90/301,386.45 = 122,192.30/x
  3. Step 3: Cross multiply
    201,215.90x = 301,386.45 × 122,192.30
  4. Step 4: Simplify right side
    201,215.90x = 36,827,103,514.34
  5. Step 5: Solve for x
    x = 36,827,103,514.34/201,215.90
  6. Step 6: Final answer
    x = 183,022.83

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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.