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Finding the Fourth Proportional to 199,574.97, 299,148.21 and 99,537.54

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Solution

The fourth proportional to 199,574.97, 299,148.21 and 99,537.54 is: 149,199.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,574.97 : 299,148.21 = 99,537.54 : x
  2. Step 2: Convert to fraction form
    199,574.97/299,148.21 = 99,537.54/x
  3. Step 3: Cross multiply
    199,574.97x = 299,148.21 × 99,537.54
  4. Step 4: Simplify right side
    199,574.97x = 29,776,476,918.80
  5. Step 5: Solve for x
    x = 29,776,476,918.80/199,574.97
  6. Step 6: Final answer
    x = 149,199.46

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1.5x scale

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.