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Finding the Fourth Proportional to 191,479.45, 287,197.29 and 51,249.01

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Solution

The fourth proportional to 191,479.45, 287,197.29 and 51,249.01 is: 76,867.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,479.45 : 287,197.29 = 51,249.01 : x
  2. Step 2: Convert to fraction form
    191,479.45/287,197.29 = 51,249.01/x
  3. Step 3: Cross multiply
    191,479.45x = 287,197.29 × 51,249.01
  4. Step 4: Simplify right side
    191,479.45x = 14,718,576,787.18
  5. Step 5: Solve for x
    x = 14,718,576,787.18/191,479.45
  6. Step 6: Final answer
    x = 76,867.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.