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Finding the Fourth Proportional to 308,877.68, 426,230.35 and 171,046.71

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Solution

The fourth proportional to 308,877.68, 426,230.35 and 171,046.71 is: 236,032.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,877.68 : 426,230.35 = 171,046.71 : x
  2. Step 2: Convert to fraction form
    308,877.68/426,230.35 = 171,046.71/x
  3. Step 3: Cross multiply
    308,877.68x = 426,230.35 × 171,046.71
  4. Step 4: Simplify right side
    308,877.68x = 72,905,300,802.94
  5. Step 5: Solve for x
    x = 72,905,300,802.94/308,877.68
  6. Step 6: Final answer
    x = 236,032.92

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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.