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Finding the Fourth Proportional to 270,835.11, 406,065.40 and 118,958.89

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Solution

The fourth proportional to 270,835.11, 406,065.40 and 118,958.89 is: 178,356.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,835.11 : 406,065.40 = 118,958.89 : x
  2. Step 2: Convert to fraction form
    270,835.11/406,065.40 = 118,958.89/x
  3. Step 3: Cross multiply
    270,835.11x = 406,065.40 × 118,958.89
  4. Step 4: Simplify right side
    270,835.11x = 48,305,088,656.61
  5. Step 5: Solve for x
    x = 48,305,088,656.61/270,835.11
  6. Step 6: Final answer
    x = 178,356.08

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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.