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Finding the Fourth Proportional to 199,530.30, 299,295.45 and 124,734.90

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Solution

The fourth proportional to 199,530.30, 299,295.45 and 124,734.90 is: 187,102.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,530.30 : 299,295.45 = 124,734.90 : x
  2. Step 2: Convert to fraction form
    199,530.30/299,295.45 = 124,734.90/x
  3. Step 3: Cross multiply
    199,530.30x = 299,295.45 × 124,734.90
  4. Step 4: Simplify right side
    199,530.30x = 37,332,588,026.21
  5. Step 5: Solve for x
    x = 37,332,588,026.21/199,530.30
  6. Step 6: Final answer
    x = 187,102.35

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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.