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Finding the Fourth Proportional to 199,386.60, 299,079.90 and 146,250.60

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Solution

The fourth proportional to 199,386.60, 299,079.90 and 146,250.60 is: 219,375.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,386.60 : 299,079.90 = 146,250.60 : x
  2. Step 2: Convert to fraction form
    199,386.60/299,079.90 = 146,250.60/x
  3. Step 3: Cross multiply
    199,386.60x = 299,079.90 × 146,250.60
  4. Step 4: Simplify right side
    199,386.60x = 43,740,614,822.94
  5. Step 5: Solve for x
    x = 43,740,614,822.94/199,386.60
  6. Step 6: Final answer
    x = 219,375.90

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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.