Home / 401,520.57-602,148.14-135,214.98

Finding the Fourth Proportional to 401,520.57, 602,148.14 and 135,214.98

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Solution

The fourth proportional to 401,520.57, 602,148.14 and 135,214.98 is: 202,777.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,520.57 : 602,148.14 = 135,214.98 : x
  2. Step 2: Convert to fraction form
    401,520.57/602,148.14 = 135,214.98/x
  3. Step 3: Cross multiply
    401,520.57x = 602,148.14 × 135,214.98
  4. Step 4: Simplify right side
    401,520.57x = 81,419,448,707.14
  5. Step 5: Solve for x
    x = 81,419,448,707.14/401,520.57
  6. Step 6: Final answer
    x = 202,777.78

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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.