Home / 411,832.40-618,148.06-198,750.26

Finding the Fourth Proportional to 411,832.40, 618,148.06 and 198,750.26

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Solution

The fourth proportional to 411,832.40, 618,148.06 and 198,750.26 is: 298,318.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,832.40 : 618,148.06 = 198,750.26 : x
  2. Step 2: Convert to fraction form
    411,832.40/618,148.06 = 198,750.26/x
  3. Step 3: Cross multiply
    411,832.40x = 618,148.06 × 198,750.26
  4. Step 4: Simplify right side
    411,832.40x = 122,857,087,643.50
  5. Step 5: Solve for x
    x = 122,857,087,643.50/411,832.40
  6. Step 6: Final answer
    x = 298,318.17

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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.