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Finding the Fourth Proportional to 220,443.28, 304,214.28 and 122,328.54

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Solution

The fourth proportional to 220,443.28, 304,214.28 and 122,328.54 is: 168,814.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,443.28 : 304,214.28 = 122,328.54 : x
  2. Step 2: Convert to fraction form
    220,443.28/304,214.28 = 122,328.54/x
  3. Step 3: Cross multiply
    220,443.28x = 304,214.28 × 122,328.54
  4. Step 4: Simplify right side
    220,443.28x = 37,214,088,719.55
  5. Step 5: Solve for x
    x = 37,214,088,719.55/220,443.28
  6. Step 6: Final answer
    x = 168,814.80

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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.