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Finding the Fourth Proportional to 201,610.77, 278,222.85 and 109,730.72

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Solution

The fourth proportional to 201,610.77, 278,222.85 and 109,730.72 is: 151,428.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,610.77 : 278,222.85 = 109,730.72 : x
  2. Step 2: Convert to fraction form
    201,610.77/278,222.85 = 109,730.72/x
  3. Step 3: Cross multiply
    201,610.77x = 278,222.85 × 109,730.72
  4. Step 4: Simplify right side
    201,610.77x = 30,529,593,226.51
  5. Step 5: Solve for x
    x = 30,529,593,226.51/201,610.77
  6. Step 6: Final answer
    x = 151,428.38

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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.