Home / 307,299.20-424,140.96-199,682.40

Finding the Fourth Proportional to 307,299.20, 424,140.96 and 199,682.40

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Solution

The fourth proportional to 307,299.20, 424,140.96 and 199,682.40 is: 275,605.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,299.20 : 424,140.96 = 199,682.40 : x
  2. Step 2: Convert to fraction form
    307,299.20/424,140.96 = 199,682.40/x
  3. Step 3: Cross multiply
    307,299.20x = 424,140.96 × 199,682.40
  4. Step 4: Simplify right side
    307,299.20x = 84,693,484,831.10
  5. Step 5: Solve for x
    x = 84,693,484,831.10/307,299.20
  6. Step 6: Final answer
    x = 275,605.94

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1.5x scale

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.