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Finding the Fourth Proportional to 201,150.80, 301,920.60 and 122,418.80

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Solution

The fourth proportional to 201,150.80, 301,920.60 and 122,418.80 is: 183,746.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,150.80 : 301,920.60 = 122,418.80 : x
  2. Step 2: Convert to fraction form
    201,150.80/301,920.60 = 122,418.80/x
  3. Step 3: Cross multiply
    201,150.80x = 301,920.60 × 122,418.80
  4. Step 4: Simplify right side
    201,150.80x = 36,960,757,547.28
  5. Step 5: Solve for x
    x = 36,960,757,547.28/201,150.80
  6. Step 6: Final answer
    x = 183,746.51

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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.