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Finding the Fourth Proportional to 307,383.46, 424,191.63 and 171,426.17

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Solution

The fourth proportional to 307,383.46, 424,191.63 and 171,426.17 is: 236,569.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,383.46 : 424,191.63 = 171,426.17 : x
  2. Step 2: Convert to fraction form
    307,383.46/424,191.63 = 171,426.17/x
  3. Step 3: Cross multiply
    307,383.46x = 424,191.63 × 171,426.17
  4. Step 4: Simplify right side
    307,383.46x = 72,717,548,180.28
  5. Step 5: Solve for x
    x = 72,717,548,180.28/307,383.46
  6. Step 6: Final answer
    x = 236,569.49

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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.