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Finding the Fourth Proportional to 636,242.26, 954,338.47 and 215,518.13

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Solution

The fourth proportional to 636,242.26, 954,338.47 and 215,518.13 is: 323,268.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,242.26 : 954,338.47 = 215,518.13 : x
  2. Step 2: Convert to fraction form
    636,242.26/954,338.47 = 215,518.13/x
  3. Step 3: Cross multiply
    636,242.26x = 954,338.47 × 215,518.13
  4. Step 4: Simplify right side
    636,242.26x = 205,677,242,441.46
  5. Step 5: Solve for x
    x = 205,677,242,441.46/636,242.26
  6. Step 6: Final answer
    x = 323,268.75

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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.