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Finding the Fourth Proportional to 207,533.72, 286,134.54 and 135,800.12

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Solution

The fourth proportional to 207,533.72, 286,134.54 and 135,800.12 is: 187,232.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,533.72 : 286,134.54 = 135,800.12 : x
  2. Step 2: Convert to fraction form
    207,533.72/286,134.54 = 135,800.12/x
  3. Step 3: Cross multiply
    207,533.72x = 286,134.54 × 135,800.12
  4. Step 4: Simplify right side
    207,533.72x = 38,857,104,868.14
  5. Step 5: Solve for x
    x = 38,857,104,868.14/207,533.72
  6. Step 6: Final answer
    x = 187,232.73

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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.