Home / 307,861.24-424,874.78-171,921.45

Finding the Fourth Proportional to 307,861.24, 424,874.78 and 171,921.45

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Solution

The fourth proportional to 307,861.24, 424,874.78 and 171,921.45 is: 237,266.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,861.24 : 424,874.78 = 171,921.45 : x
  2. Step 2: Convert to fraction form
    307,861.24/424,874.78 = 171,921.45/x
  3. Step 3: Cross multiply
    307,861.24x = 424,874.78 × 171,921.45
  4. Step 4: Simplify right side
    307,861.24x = 73,045,087,386.42
  5. Step 5: Solve for x
    x = 73,045,087,386.42/307,861.24
  6. Step 6: Final answer
    x = 237,266.27

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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.