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Finding the Fourth Proportional to 307,765.68, 424,737.99 and 171,826.35

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Solution

The fourth proportional to 307,765.68, 424,737.99 and 171,826.35 is: 237,132.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,765.68 : 424,737.99 = 171,826.35 : x
  2. Step 2: Convert to fraction form
    307,765.68/424,737.99 = 171,826.35/x
  3. Step 3: Cross multiply
    307,765.68x = 424,737.99 × 171,826.35
  4. Step 4: Simplify right side
    307,765.68x = 72,981,178,528.04
  5. Step 5: Solve for x
    x = 72,981,178,528.04/307,765.68
  6. Step 6: Final answer
    x = 237,132.28

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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.