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Finding the Fourth Proportional to 307,908.93, 424,913.48 and 171,941.77

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Solution

The fourth proportional to 307,908.93, 424,913.48 and 171,941.77 is: 237,279.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,908.93 : 424,913.48 = 171,941.77 : x
  2. Step 2: Convert to fraction form
    307,908.93/424,913.48 = 171,941.77/x
  3. Step 3: Cross multiply
    307,908.93x = 424,913.48 × 171,941.77
  4. Step 4: Simplify right side
    307,908.93x = 73,060,377,131.45
  5. Step 5: Solve for x
    x = 73,060,377,131.45/307,908.93
  6. Step 6: Final answer
    x = 237,279.18

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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.