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Finding the Fourth Proportional to 404,299.16, 606,509.40 and 130,654.16

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Solution

The fourth proportional to 404,299.16, 606,509.40 and 130,654.16 is: 196,000.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,299.16 : 606,509.40 = 130,654.16 : x
  2. Step 2: Convert to fraction form
    404,299.16/606,509.40 = 130,654.16/x
  3. Step 3: Cross multiply
    404,299.16x = 606,509.40 × 130,654.16
  4. Step 4: Simplify right side
    404,299.16x = 79,242,976,189.10
  5. Step 5: Solve for x
    x = 79,242,976,189.10/404,299.16
  6. Step 6: Final answer
    x = 196,000.84

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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.