Home / 242,918.70-335,228.39-135,495.69

Finding the Fourth Proportional to 242,918.70, 335,228.39 and 135,495.69

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Solution

The fourth proportional to 242,918.70, 335,228.39 and 135,495.69 is: 186,984.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,918.70 : 335,228.39 = 135,495.69 : x
  2. Step 2: Convert to fraction form
    242,918.70/335,228.39 = 135,495.69/x
  3. Step 3: Cross multiply
    242,918.70x = 335,228.39 × 135,495.69
  4. Step 4: Simplify right side
    242,918.70x = 45,422,001,333.16
  5. Step 5: Solve for x
    x = 45,422,001,333.16/242,918.70
  6. Step 6: Final answer
    x = 186,984.38

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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.