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Finding the Fourth Proportional to 313,149.06, 469,739.97 and 238,386.42

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Solution

The fourth proportional to 313,149.06, 469,739.97 and 238,386.42 is: 357,592.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,149.06 : 469,739.97 = 238,386.42 : x
  2. Step 2: Convert to fraction form
    313,149.06/469,739.97 = 238,386.42/x
  3. Step 3: Cross multiply
    313,149.06x = 469,739.97 × 238,386.42
  4. Step 4: Simplify right side
    313,149.06x = 111,979,629,779.21
  5. Step 5: Solve for x
    x = 111,979,629,779.21/313,149.06
  6. Step 6: Final answer
    x = 357,592.10

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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.