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Finding the Fourth Proportional to 219,887.96, 303,419.76 and 123,097.10

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Solution

The fourth proportional to 219,887.96, 303,419.76 and 123,097.10 is: 169,859.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,887.96 : 303,419.76 = 123,097.10 : x
  2. Step 2: Convert to fraction form
    219,887.96/303,419.76 = 123,097.10/x
  3. Step 3: Cross multiply
    219,887.96x = 303,419.76 × 123,097.10
  4. Step 4: Simplify right side
    219,887.96x = 37,350,091,021.60
  5. Step 5: Solve for x
    x = 37,350,091,021.60/219,887.96
  6. Step 6: Final answer
    x = 169,859.65

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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.