Home / 219,270.92-302,585.29-137,643.10

Finding the Fourth Proportional to 219,270.92, 302,585.29 and 137,643.10

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Solution

The fourth proportional to 219,270.92, 302,585.29 and 137,643.10 is: 189,942.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,270.92 : 302,585.29 = 137,643.10 : x
  2. Step 2: Convert to fraction form
    219,270.92/302,585.29 = 137,643.10/x
  3. Step 3: Cross multiply
    219,270.92x = 302,585.29 × 137,643.10
  4. Step 4: Simplify right side
    219,270.92x = 41,648,776,229.43
  5. Step 5: Solve for x
    x = 41,648,776,229.43/219,270.92
  6. Step 6: Final answer
    x = 189,942.09

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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.