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Finding the Fourth Proportional to 219,605.28, 329,258.88 and 69,800.64

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Solution

The fourth proportional to 219,605.28, 329,258.88 and 69,800.64 is: 104,653.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,605.28 : 329,258.88 = 69,800.64 : x
  2. Step 2: Convert to fraction form
    219,605.28/329,258.88 = 69,800.64/x
  3. Step 3: Cross multiply
    219,605.28x = 329,258.88 × 69,800.64
  4. Step 4: Simplify right side
    219,605.28x = 22,982,480,549.68
  5. Step 5: Solve for x
    x = 22,982,480,549.68/219,605.28
  6. Step 6: Final answer
    x = 104,653.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.