Home / 315,334.20-472,223.70-209,580.60

Finding the Fourth Proportional to 315,334.20, 472,223.70 and 209,580.60

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Solution

The fourth proportional to 315,334.20, 472,223.70 and 209,580.60 is: 313,854.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,334.20 : 472,223.70 = 209,580.60 : x
  2. Step 2: Convert to fraction form
    315,334.20/472,223.70 = 209,580.60/x
  3. Step 3: Cross multiply
    315,334.20x = 472,223.70 × 209,580.60
  4. Step 4: Simplify right side
    315,334.20x = 98,968,926,380.22
  5. Step 5: Solve for x
    x = 98,968,926,380.22/315,334.20
  6. Step 6: Final answer
    x = 313,854.08

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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.