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Finding the Fourth Proportional to 201,171.90, 301,320.45 and 122,148.30

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Solution

The fourth proportional to 201,171.90, 301,320.45 and 122,148.30 is: 182,956.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,171.90 : 301,320.45 = 122,148.30 : x
  2. Step 2: Convert to fraction form
    201,171.90/301,320.45 = 122,148.30/x
  3. Step 3: Cross multiply
    201,171.90x = 301,320.45 × 122,148.30
  4. Step 4: Simplify right side
    201,171.90x = 36,805,780,722.74
  5. Step 5: Solve for x
    x = 36,805,780,722.74/201,171.90
  6. Step 6: Final answer
    x = 182,956.87

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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.