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Finding the Fourth Proportional to 199,448.63, 299,107.98 and 66,293.13

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Solution

The fourth proportional to 199,448.63, 299,107.98 and 66,293.13 is: 99,418.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,448.63 : 299,107.98 = 66,293.13 : x
  2. Step 2: Convert to fraction form
    199,448.63/299,107.98 = 66,293.13/x
  3. Step 3: Cross multiply
    199,448.63x = 299,107.98 × 66,293.13
  4. Step 4: Simplify right side
    199,448.63x = 19,828,804,202.18
  5. Step 5: Solve for x
    x = 19,828,804,202.18/199,448.63
  6. Step 6: Final answer
    x = 99,418.10

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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.