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Finding the Fourth Proportional to 219,443.28, 302,825.52 and 130,019.28

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Solution

The fourth proportional to 219,443.28, 302,825.52 and 130,019.28 is: 179,422.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,443.28 : 302,825.52 = 130,019.28 : x
  2. Step 2: Convert to fraction form
    219,443.28/302,825.52 = 130,019.28/x
  3. Step 3: Cross multiply
    219,443.28x = 302,825.52 × 130,019.28
  4. Step 4: Simplify right side
    219,443.28x = 39,373,156,076.03
  5. Step 5: Solve for x
    x = 39,373,156,076.03/219,443.28
  6. Step 6: Final answer
    x = 179,422.93

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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.