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Finding the Fourth Proportional to 151,363.50, 208,888.11 and 84,295.50

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Solution

The fourth proportional to 151,363.50, 208,888.11 and 84,295.50 is: 116,331.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,363.50 : 208,888.11 = 84,295.50 : x
  2. Step 2: Convert to fraction form
    151,363.50/208,888.11 = 84,295.50/x
  3. Step 3: Cross multiply
    151,363.50x = 208,888.11 × 84,295.50
  4. Step 4: Simplify right side
    151,363.50x = 17,608,327,676.51
  5. Step 5: Solve for x
    x = 17,608,327,676.51/151,363.50
  6. Step 6: Final answer
    x = 116,331.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.