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Finding the Fourth Proportional to 219,320.60, 329,369.70 and 169,521.80

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Solution

The fourth proportional to 219,320.60, 329,369.70 and 169,521.80 is: 254,583.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,320.60 : 329,369.70 = 169,521.80 : x
  2. Step 2: Convert to fraction form
    219,320.60/329,369.70 = 169,521.80/x
  3. Step 3: Cross multiply
    219,320.60x = 329,369.70 × 169,521.80
  4. Step 4: Simplify right side
    219,320.60x = 55,835,344,409.46
  5. Step 5: Solve for x
    x = 55,835,344,409.46/219,320.60
  6. Step 6: Final answer
    x = 254,583.22

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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.