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Finding the Fourth Proportional to 202,460.69, 279,383.50 and 121,914.29

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Solution

The fourth proportional to 202,460.69, 279,383.50 and 121,914.29 is: 168,234.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,460.69 : 279,383.50 = 121,914.29 : x
  2. Step 2: Convert to fraction form
    202,460.69/279,383.50 = 121,914.29/x
  3. Step 3: Cross multiply
    202,460.69x = 279,383.50 × 121,914.29
  4. Step 4: Simplify right side
    202,460.69x = 34,060,841,040.22
  5. Step 5: Solve for x
    x = 34,060,841,040.22/202,460.69
  6. Step 6: Final answer
    x = 168,234.34

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1.5x scale

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.