Home / 307,328.45-424,111.68-178,293.02

Finding the Fourth Proportional to 307,328.45, 424,111.68 and 178,293.02

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Solution

The fourth proportional to 307,328.45, 424,111.68 and 178,293.02 is: 246,043.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,328.45 : 424,111.68 = 178,293.02 : x
  2. Step 2: Convert to fraction form
    307,328.45/424,111.68 = 178,293.02/x
  3. Step 3: Cross multiply
    307,328.45x = 424,111.68 × 178,293.02
  4. Step 4: Simplify right side
    307,328.45x = 75,616,150,123.92
  5. Step 5: Solve for x
    x = 75,616,150,123.92/307,328.45
  6. Step 6: Final answer
    x = 246,043.45

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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.