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Finding the Fourth Proportional to 307,328.95, 424,112.37 and 178,293.52

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Solution

The fourth proportional to 307,328.95, 424,112.37 and 178,293.52 is: 246,044.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,328.95 : 424,112.37 = 178,293.52 : x
  2. Step 2: Convert to fraction form
    307,328.95/424,112.37 = 178,293.52/x
  3. Step 3: Cross multiply
    307,328.95x = 424,112.37 × 178,293.52
  4. Step 4: Simplify right side
    307,328.95x = 75,616,485,202.28
  5. Step 5: Solve for x
    x = 75,616,485,202.28/307,328.95
  6. Step 6: Final answer
    x = 246,044.14

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1.5x scale

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.