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Finding the Fourth Proportional to 180,572.48, 249,112.72 and 108,911.68

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Solution

The fourth proportional to 180,572.48, 249,112.72 and 108,911.68 is: 150,251.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,572.48 : 249,112.72 = 108,911.68 : x
  2. Step 2: Convert to fraction form
    180,572.48/249,112.72 = 108,911.68/x
  3. Step 3: Cross multiply
    180,572.48x = 249,112.72 × 108,911.68
  4. Step 4: Simplify right side
    180,572.48x = 27,131,284,844.57
  5. Step 5: Solve for x
    x = 27,131,284,844.57/180,572.48
  6. Step 6: Final answer
    x = 150,251.49

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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.