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Finding the Fourth Proportional to 540,262.38, 810,439.59 and 161,158.68

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Solution

The fourth proportional to 540,262.38, 810,439.59 and 161,158.68 is: 241,751.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,262.38 : 810,439.59 = 161,158.68 : x
  2. Step 2: Convert to fraction form
    540,262.38/810,439.59 = 161,158.68/x
  3. Step 3: Cross multiply
    540,262.38x = 810,439.59 × 161,158.68
  4. Step 4: Simplify right side
    540,262.38x = 130,609,374,544.14
  5. Step 5: Solve for x
    x = 130,609,374,544.14/540,262.38
  6. Step 6: Final answer
    x = 241,751.75

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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.