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Finding the Fourth Proportional to 654,395.40, 981,614.91 and 181,041.12

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Solution

The fourth proportional to 654,395.40, 981,614.91 and 181,041.12 is: 271,567.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,395.40 : 981,614.91 = 181,041.12 : x
  2. Step 2: Convert to fraction form
    654,395.40/981,614.91 = 181,041.12/x
  3. Step 3: Cross multiply
    654,395.40x = 981,614.91 × 181,041.12
  4. Step 4: Simplify right side
    654,395.40x = 177,712,662,715.10
  5. Step 5: Solve for x
    x = 177,712,662,715.10/654,395.40
  6. Step 6: Final answer
    x = 271,567.71

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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.