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Finding the Fourth Proportional to 219,401.40, 329,102.10 and 153,046.20

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Solution

The fourth proportional to 219,401.40, 329,102.10 and 153,046.20 is: 229,569.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,401.40 : 329,102.10 = 153,046.20 : x
  2. Step 2: Convert to fraction form
    219,401.40/329,102.10 = 153,046.20/x
  3. Step 3: Cross multiply
    219,401.40x = 329,102.10 × 153,046.20
  4. Step 4: Simplify right side
    219,401.40x = 50,367,825,817.02
  5. Step 5: Solve for x
    x = 50,367,825,817.02/219,401.40
  6. Step 6: Final answer
    x = 229,569.30

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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.