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Finding the Fourth Proportional to 478,162.81, 659,864.67 and 263,302.36

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Solution

The fourth proportional to 478,162.81, 659,864.67 and 263,302.36 is: 363,357.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,162.81 : 659,864.67 = 263,302.36 : x
  2. Step 2: Convert to fraction form
    478,162.81/659,864.67 = 263,302.36/x
  3. Step 3: Cross multiply
    478,162.81x = 659,864.67 × 263,302.36
  4. Step 4: Simplify right side
    478,162.81x = 173,743,924,891.62
  5. Step 5: Solve for x
    x = 173,743,924,891.62/478,162.81
  6. Step 6: Final answer
    x = 363,357.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.