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Finding the Fourth Proportional to 201,610.17, 278,264.03 and 121,041.09

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Solution

The fourth proportional to 201,610.17, 278,264.03 and 121,041.09 is: 167,061.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,610.17 : 278,264.03 = 121,041.09 : x
  2. Step 2: Convert to fraction form
    201,610.17/278,264.03 = 121,041.09/x
  3. Step 3: Cross multiply
    201,610.17x = 278,264.03 × 121,041.09
  4. Step 4: Simplify right side
    201,610.17x = 33,681,380,893.79
  5. Step 5: Solve for x
    x = 33,681,380,893.79/201,610.17
  6. Step 6: Final answer
    x = 167,061.91

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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.