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Finding the Fourth Proportional to 199,341.80, 299,027.10 and 66,314.60

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Solution

The fourth proportional to 199,341.80, 299,027.10 and 66,314.60 is: 99,476.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,341.80 : 299,027.10 = 66,314.60 : x
  2. Step 2: Convert to fraction form
    199,341.80/299,027.10 = 66,314.60/x
  3. Step 3: Cross multiply
    199,341.80x = 299,027.10 × 66,314.60
  4. Step 4: Simplify right side
    199,341.80x = 19,829,862,525.66
  5. Step 5: Solve for x
    x = 19,829,862,525.66/199,341.80
  6. Step 6: Final answer
    x = 99,476.69

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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.