Home / 219,719.38-303,220.91-124,220.38

Finding the Fourth Proportional to 219,719.38, 303,220.91 and 124,220.38

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Solution

The fourth proportional to 219,719.38, 303,220.91 and 124,220.38 is: 171,428.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,719.38 : 303,220.91 = 124,220.38 : x
  2. Step 2: Convert to fraction form
    219,719.38/303,220.91 = 124,220.38/x
  3. Step 3: Cross multiply
    219,719.38x = 303,220.91 × 124,220.38
  4. Step 4: Simplify right side
    219,719.38x = 37,666,216,664.15
  5. Step 5: Solve for x
    x = 37,666,216,664.15/219,719.38
  6. Step 6: Final answer
    x = 171,428.74

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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.