Home / 401,440.34-602,161.56-135,387.74

Finding the Fourth Proportional to 401,440.34, 602,161.56 and 135,387.74

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Solution

The fourth proportional to 401,440.34, 602,161.56 and 135,387.74 is: 203,081.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,440.34 : 602,161.56 = 135,387.74 : x
  2. Step 2: Convert to fraction form
    401,440.34/602,161.56 = 135,387.74/x
  3. Step 3: Cross multiply
    401,440.34x = 602,161.56 × 135,387.74
  4. Step 4: Simplify right side
    401,440.34x = 81,525,294,228.68
  5. Step 5: Solve for x
    x = 81,525,294,228.68/401,440.34
  6. Step 6: Final answer
    x = 203,081.97

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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.