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Finding the Fourth Proportional to 219,615.28, 303,069.32 and 119,013.28

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Solution

The fourth proportional to 219,615.28, 303,069.32 and 119,013.28 is: 164,238.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,615.28 : 303,069.32 = 119,013.28 : x
  2. Step 2: Convert to fraction form
    219,615.28/303,069.32 = 119,013.28/x
  3. Step 3: Cross multiply
    219,615.28x = 303,069.32 × 119,013.28
  4. Step 4: Simplify right side
    219,615.28x = 36,069,273,840.57
  5. Step 5: Solve for x
    x = 36,069,273,840.57/219,615.28
  6. Step 6: Final answer
    x = 164,238.45

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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.