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Finding the Fourth Proportional to 270,008.56, 405,159.08 and 112,345.84

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Solution

The fourth proportional to 270,008.56, 405,159.08 and 112,345.84 is: 168,579.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,008.56 : 405,159.08 = 112,345.84 : x
  2. Step 2: Convert to fraction form
    270,008.56/405,159.08 = 112,345.84/x
  3. Step 3: Cross multiply
    270,008.56x = 405,159.08 × 112,345.84
  4. Step 4: Simplify right side
    270,008.56x = 45,517,937,176.23
  5. Step 5: Solve for x
    x = 45,517,937,176.23/270,008.56
  6. Step 6: Final answer
    x = 168,579.61

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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.