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Finding the Fourth Proportional to 180,540.80, 249,154.85 and 108,919.28

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Solution

The fourth proportional to 180,540.80, 249,154.85 and 108,919.28 is: 150,313.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,540.80 : 249,154.85 = 108,919.28 : x
  2. Step 2: Convert to fraction form
    180,540.80/249,154.85 = 108,919.28/x
  3. Step 3: Cross multiply
    180,540.80x = 249,154.85 × 108,919.28
  4. Step 4: Simplify right side
    180,540.80x = 27,137,767,765.69
  5. Step 5: Solve for x
    x = 27,137,767,765.69/180,540.80
  6. Step 6: Final answer
    x = 150,313.77

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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.