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Finding the Fourth Proportional to 636,143.36, 954,255.36 and 209,707.52

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Solution

The fourth proportional to 636,143.36, 954,255.36 and 209,707.52 is: 314,574.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,143.36 : 954,255.36 = 209,707.52 : x
  2. Step 2: Convert to fraction form
    636,143.36/954,255.36 = 209,707.52/x
  3. Step 3: Cross multiply
    636,143.36x = 954,255.36 × 209,707.52
  4. Step 4: Simplify right side
    636,143.36x = 200,114,524,992.31
  5. Step 5: Solve for x
    x = 200,114,524,992.31/636,143.36
  6. Step 6: Final answer
    x = 314,574.57

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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.