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Finding the Fourth Proportional to 308,056.91, 424,941.09 and 185,463.95

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Solution

The fourth proportional to 308,056.91, 424,941.09 and 185,463.95 is: 255,833.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,056.91 : 424,941.09 = 185,463.95 : x
  2. Step 2: Convert to fraction form
    308,056.91/424,941.09 = 185,463.95/x
  3. Step 3: Cross multiply
    308,056.91x = 424,941.09 × 185,463.95
  4. Step 4: Simplify right side
    308,056.91x = 78,811,253,068.71
  5. Step 5: Solve for x
    x = 78,811,253,068.71/308,056.91
  6. Step 6: Final answer
    x = 255,833.42

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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.