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Finding the Fourth Proportional to 151,020, 226,530.72 and 40,212

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Solution

The fourth proportional to 151,020, 226,530.72 and 40,212 is: 60,318.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,020 : 226,530.72 = 40,212 : x
  2. Step 2: Convert to fraction form
    151,020/226,530.72 = 40,212/x
  3. Step 3: Cross multiply
    151,020x = 226,530.72 × 40,212
  4. Step 4: Simplify right side
    151,020x = 9,109,253,312.64
  5. Step 5: Solve for x
    x = 9,109,253,312.64/151,020
  6. Step 6: Final answer
    x = 60,318.19

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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.