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Finding the Fourth Proportional to 263,368.83, 395,064.51 and 103,479.39

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Solution

The fourth proportional to 263,368.83, 395,064.51 and 103,479.39 is: 155,223.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,368.83 : 395,064.51 = 103,479.39 : x
  2. Step 2: Convert to fraction form
    263,368.83/395,064.51 = 103,479.39/x
  3. Step 3: Cross multiply
    263,368.83x = 395,064.51 × 103,479.39
  4. Step 4: Simplify right side
    263,368.83x = 40,881,034,505.45
  5. Step 5: Solve for x
    x = 40,881,034,505.45/263,368.83
  6. Step 6: Final answer
    x = 155,223.51

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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.