Home / 307,576.92-423,972.78-210,613.16

Finding the Fourth Proportional to 307,576.92, 423,972.78 and 210,613.16

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Solution

The fourth proportional to 307,576.92, 423,972.78 and 210,613.16 is: 290,315.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,576.92 : 423,972.78 = 210,613.16 : x
  2. Step 2: Convert to fraction form
    307,576.92/423,972.78 = 210,613.16/x
  3. Step 3: Cross multiply
    307,576.92x = 423,972.78 × 210,613.16
  4. Step 4: Simplify right side
    307,576.92x = 89,294,247,902.64
  5. Step 5: Solve for x
    x = 89,294,247,902.64/307,576.92
  6. Step 6: Final answer
    x = 290,315.17

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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.