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Finding the Fourth Proportional to 191,429.88, 287,208.77 and 84,799.35

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Solution

The fourth proportional to 191,429.88, 287,208.77 and 84,799.35 is: 127,227.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,429.88 : 287,208.77 = 84,799.35 : x
  2. Step 2: Convert to fraction form
    191,429.88/287,208.77 = 84,799.35/x
  3. Step 3: Cross multiply
    191,429.88x = 287,208.77 × 84,799.35
  4. Step 4: Simplify right side
    191,429.88x = 24,355,116,586.30
  5. Step 5: Solve for x
    x = 24,355,116,586.30/191,429.88
  6. Step 6: Final answer
    x = 127,227.35

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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.