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Finding the Fourth Proportional to 307,392.30, 424,200.53 and 171,426.39

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Solution

The fourth proportional to 307,392.30, 424,200.53 and 171,426.39 is: 236,567.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,392.30 : 424,200.53 = 171,426.39 : x
  2. Step 2: Convert to fraction form
    307,392.30/424,200.53 = 171,426.39/x
  3. Step 3: Cross multiply
    307,392.30x = 424,200.53 × 171,426.39
  4. Step 4: Simplify right side
    307,392.30x = 72,719,165,922.55
  5. Step 5: Solve for x
    x = 72,719,165,922.55/307,392.30
  6. Step 6: Final answer
    x = 236,567.95

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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.