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Finding the Fourth Proportional to 270,388.55, 405,626.57 and 112,632.95

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Solution

The fourth proportional to 270,388.55, 405,626.57 and 112,632.95 is: 168,967.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,388.55 : 405,626.57 = 112,632.95 : x
  2. Step 2: Convert to fraction form
    270,388.55/405,626.57 = 112,632.95/x
  3. Step 3: Cross multiply
    270,388.55x = 405,626.57 × 112,632.95
  4. Step 4: Simplify right side
    270,388.55x = 45,686,918,050.76
  5. Step 5: Solve for x
    x = 45,686,918,050.76/270,388.55
  6. Step 6: Final answer
    x = 168,967.65

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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.