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Finding the Fourth Proportional to 340,487.16, 469,837.50 and 209,644.03

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Solution

The fourth proportional to 340,487.16, 469,837.50 and 209,644.03 is: 289,287.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,487.16 : 469,837.50 = 209,644.03 : x
  2. Step 2: Convert to fraction form
    340,487.16/469,837.50 = 209,644.03/x
  3. Step 3: Cross multiply
    340,487.16x = 469,837.50 × 209,644.03
  4. Step 4: Simplify right side
    340,487.16x = 98,498,626,945.13
  5. Step 5: Solve for x
    x = 98,498,626,945.13/340,487.16
  6. Step 6: Final answer
    x = 289,287.35

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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.