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Finding the Fourth Proportional to 180,340.95, 270,289.89 and 101,289

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Solution

The fourth proportional to 180,340.95, 270,289.89 and 101,289 is: 151,809.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,340.95 : 270,289.89 = 101,289 : x
  2. Step 2: Convert to fraction form
    180,340.95/270,289.89 = 101,289/x
  3. Step 3: Cross multiply
    180,340.95x = 270,289.89 × 101,289
  4. Step 4: Simplify right side
    180,340.95x = 27,377,392,668.21
  5. Step 5: Solve for x
    x = 27,377,392,668.21/180,340.95
  6. Step 6: Final answer
    x = 151,809.07

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1.5x scale

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.