Home / 312,451.16-465,933.15-309,609.45

Finding the Fourth Proportional to 312,451.16, 465,933.15 and 309,609.45

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Solution

The fourth proportional to 312,451.16, 465,933.15 and 309,609.45 is: 461,695.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,451.16 : 465,933.15 = 309,609.45 : x
  2. Step 2: Convert to fraction form
    312,451.16/465,933.15 = 309,609.45/x
  3. Step 3: Cross multiply
    312,451.16x = 465,933.15 × 309,609.45
  4. Step 4: Simplify right side
    312,451.16x = 144,257,306,308.27
  5. Step 5: Solve for x
    x = 144,257,306,308.27/312,451.16
  6. Step 6: Final answer
    x = 461,695.55

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.