Home / 242,781.36-335,039.76-135,358.26

Finding the Fourth Proportional to 242,781.36, 335,039.76 and 135,358.26

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Solution

The fourth proportional to 242,781.36, 335,039.76 and 135,358.26 is: 186,795.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,781.36 : 335,039.76 = 135,358.26 : x
  2. Step 2: Convert to fraction form
    242,781.36/335,039.76 = 135,358.26/x
  3. Step 3: Cross multiply
    242,781.36x = 335,039.76 × 135,358.26
  4. Step 4: Simplify right side
    242,781.36x = 45,350,398,944.42
  5. Step 5: Solve for x
    x = 45,350,398,944.42/242,781.36
  6. Step 6: Final answer
    x = 186,795.23

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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.