Home / 307,742.30-424,175.96-205,730.49

Finding the Fourth Proportional to 307,742.30, 424,175.96 and 205,730.49

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Solution

The fourth proportional to 307,742.30, 424,175.96 and 205,730.49 is: 283,568.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,742.30 : 424,175.96 = 205,730.49 : x
  2. Step 2: Convert to fraction form
    307,742.30/424,175.96 = 205,730.49/x
  3. Step 3: Cross multiply
    307,742.30x = 424,175.96 × 205,730.49
  4. Step 4: Simplify right side
    307,742.30x = 87,265,928,097.02
  5. Step 5: Solve for x
    x = 87,265,928,097.02/307,742.30
  6. Step 6: Final answer
    x = 283,568.19

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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.