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Finding the Fourth Proportional to 352,303.20, 486,304.50 and 209,063.25

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Solution

The fourth proportional to 352,303.20, 486,304.50 and 209,063.25 is: 288,582.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,303.20 : 486,304.50 = 209,063.25 : x
  2. Step 2: Convert to fraction form
    352,303.20/486,304.50 = 209,063.25/x
  3. Step 3: Cross multiply
    352,303.20x = 486,304.50 × 209,063.25
  4. Step 4: Simplify right side
    352,303.20x = 101,668,399,259.63
  5. Step 5: Solve for x
    x = 101,668,399,259.63/352,303.20
  6. Step 6: Final answer
    x = 288,582.11

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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.