Home / 209,695.05-314,280.27-165,145.86

Finding the Fourth Proportional to 209,695.05, 314,280.27 and 165,145.86

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Solution

The fourth proportional to 209,695.05, 314,280.27 and 165,145.86 is: 247,512.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,695.05 : 314,280.27 = 165,145.86 : x
  2. Step 2: Convert to fraction form
    209,695.05/314,280.27 = 165,145.86/x
  3. Step 3: Cross multiply
    209,695.05x = 314,280.27 × 165,145.86
  4. Step 4: Simplify right side
    209,695.05x = 51,902,085,470.18
  5. Step 5: Solve for x
    x = 51,902,085,470.18/209,695.05
  6. Step 6: Final answer
    x = 247,512.21

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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.