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Finding the Fourth Proportional to 356,240.43, 491,612.54 and 192,898.72

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Solution

The fourth proportional to 356,240.43, 491,612.54 and 192,898.72 is: 266,200.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,240.43 : 491,612.54 = 192,898.72 : x
  2. Step 2: Convert to fraction form
    356,240.43/491,612.54 = 192,898.72/x
  3. Step 3: Cross multiply
    356,240.43x = 491,612.54 × 192,898.72
  4. Step 4: Simplify right side
    356,240.43x = 94,831,427,671.71
  5. Step 5: Solve for x
    x = 94,831,427,671.71/356,240.43
  6. Step 6: Final answer
    x = 266,200.63

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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.