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Finding the Fourth Proportional to 219,721.86, 303,224.32 and 124,222.86

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Solution

The fourth proportional to 219,721.86, 303,224.32 and 124,222.86 is: 171,432.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,721.86 : 303,224.32 = 124,222.86 : x
  2. Step 2: Convert to fraction form
    219,721.86/303,224.32 = 124,222.86/x
  3. Step 3: Cross multiply
    219,721.86x = 303,224.32 × 124,222.86
  4. Step 4: Simplify right side
    219,721.86x = 37,667,392,251.96
  5. Step 5: Solve for x
    x = 37,667,392,251.96/219,721.86
  6. Step 6: Final answer
    x = 171,432.16

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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.