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Finding the Fourth Proportional to 199,790.69, 299,207.29 and 145,610.16

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Solution

The fourth proportional to 199,790.69, 299,207.29 and 145,610.16 is: 218,066.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,790.69 : 299,207.29 = 145,610.16 : x
  2. Step 2: Convert to fraction form
    199,790.69/299,207.29 = 145,610.16/x
  3. Step 3: Cross multiply
    199,790.69x = 299,207.29 × 145,610.16
  4. Step 4: Simplify right side
    199,790.69x = 43,567,621,370.07
  5. Step 5: Solve for x
    x = 43,567,621,370.07/199,790.69
  6. Step 6: Final answer
    x = 218,066.32

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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.