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Finding the Fourth Proportional to 307,337.39, 424,393.26 and 192,812.91

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Solution

The fourth proportional to 307,337.39, 424,393.26 and 192,812.91 is: 266,249.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,337.39 : 424,393.26 = 192,812.91 : x
  2. Step 2: Convert to fraction form
    307,337.39/424,393.26 = 192,812.91/x
  3. Step 3: Cross multiply
    307,337.39x = 424,393.26 × 192,812.91
  4. Step 4: Simplify right side
    307,337.39x = 81,828,497,943.89
  5. Step 5: Solve for x
    x = 81,828,497,943.89/307,337.39
  6. Step 6: Final answer
    x = 266,249.73

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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.