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Finding the Fourth Proportional to 199,878.88, 299,901.35 and 87,501.25

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Solution

The fourth proportional to 199,878.88, 299,901.35 and 87,501.25 is: 131,288.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,878.88 : 299,901.35 = 87,501.25 : x
  2. Step 2: Convert to fraction form
    199,878.88/299,901.35 = 87,501.25/x
  3. Step 3: Cross multiply
    199,878.88x = 299,901.35 × 87,501.25
  4. Step 4: Simplify right side
    199,878.88x = 26,241,743,001.69
  5. Step 5: Solve for x
    x = 26,241,743,001.69/199,878.88
  6. Step 6: Final answer
    x = 131,288.22

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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.