Home / 206,378.16-309,567.24-165,087.60

Finding the Fourth Proportional to 206,378.16, 309,567.24 and 165,087.60

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Solution

The fourth proportional to 206,378.16, 309,567.24 and 165,087.60 is: 247,631.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,378.16 : 309,567.24 = 165,087.60 : x
  2. Step 2: Convert to fraction form
    206,378.16/309,567.24 = 165,087.60/x
  3. Step 3: Cross multiply
    206,378.16x = 309,567.24 × 165,087.60
  4. Step 4: Simplify right side
    206,378.16x = 51,105,712,690.22
  5. Step 5: Solve for x
    x = 51,105,712,690.22/206,378.16
  6. Step 6: Final answer
    x = 247,631.40

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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.