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Finding the Fourth Proportional to 307,362.52, 424,167.80 and 171,395.16

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Solution

The fourth proportional to 307,362.52, 424,167.80 and 171,395.16 is: 236,529.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,362.52 : 424,167.80 = 171,395.16 : x
  2. Step 2: Convert to fraction form
    307,362.52/424,167.80 = 171,395.16/x
  3. Step 3: Cross multiply
    307,362.52x = 424,167.80 × 171,395.16
  4. Step 4: Simplify right side
    307,362.52x = 72,700,307,947.85
  5. Step 5: Solve for x
    x = 72,700,307,947.85/307,362.52
  6. Step 6: Final answer
    x = 236,529.52

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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.