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Finding the Fourth Proportional to 368,352.72, 508,371.76 and 207,214.56

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Solution

The fourth proportional to 368,352.72, 508,371.76 and 207,214.56 is: 285,981.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,352.72 : 508,371.76 = 207,214.56 : x
  2. Step 2: Convert to fraction form
    368,352.72/508,371.76 = 207,214.56/x
  3. Step 3: Cross multiply
    368,352.72x = 508,371.76 × 207,214.56
  4. Step 4: Simplify right side
    368,352.72x = 105,342,030,564.83
  5. Step 5: Solve for x
    x = 105,342,030,564.83/368,352.72
  6. Step 6: Final answer
    x = 285,981.41

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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.