Home / 401,450.82-602,177.34-135,398.22

Finding the Fourth Proportional to 401,450.82, 602,177.34 and 135,398.22

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Solution

The fourth proportional to 401,450.82, 602,177.34 and 135,398.22 is: 203,097.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,450.82 : 602,177.34 = 135,398.22 : x
  2. Step 2: Convert to fraction form
    401,450.82/602,177.34 = 135,398.22/x
  3. Step 3: Cross multiply
    401,450.82x = 602,177.34 × 135,398.22
  4. Step 4: Simplify right side
    401,450.82x = 81,533,739,960.33
  5. Step 5: Solve for x
    x = 81,533,739,960.33/401,450.82
  6. Step 6: Final answer
    x = 203,097.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.