Home / 219,015.68-302,238.56-123,553.12

Finding the Fourth Proportional to 219,015.68, 302,238.56 and 123,553.12

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Solution

The fourth proportional to 219,015.68, 302,238.56 and 123,553.12 is: 170,501.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,015.68 : 302,238.56 = 123,553.12 : x
  2. Step 2: Convert to fraction form
    219,015.68/302,238.56 = 123,553.12/x
  3. Step 3: Cross multiply
    219,015.68x = 302,238.56 × 123,553.12
  4. Step 4: Simplify right side
    219,015.68x = 37,342,517,072.31
  5. Step 5: Solve for x
    x = 37,342,517,072.31/219,015.68
  6. Step 6: Final answer
    x = 170,501.57

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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.