Home / 315,336.20-472,226.70-209,582.60

Finding the Fourth Proportional to 315,336.20, 472,226.70 and 209,582.60

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Solution

The fourth proportional to 315,336.20, 472,226.70 and 209,582.60 is: 313,857.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,336.20 : 472,226.70 = 209,582.60 : x
  2. Step 2: Convert to fraction form
    315,336.20/472,226.70 = 209,582.60/x
  3. Step 3: Cross multiply
    315,336.20x = 472,226.70 × 209,582.60
  4. Step 4: Simplify right side
    315,336.20x = 98,970,499,575.42
  5. Step 5: Solve for x
    x = 98,970,499,575.42/315,336.20
  6. Step 6: Final answer
    x = 313,857.08

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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.