Home / 315,360.20-472,262.70-209,606.60

Finding the Fourth Proportional to 315,360.20, 472,262.70 and 209,606.60

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Solution

The fourth proportional to 315,360.20, 472,262.70 and 209,606.60 is: 313,893.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,360.20 : 472,262.70 = 209,606.60 : x
  2. Step 2: Convert to fraction form
    315,360.20/472,262.70 = 209,606.60/x
  3. Step 3: Cross multiply
    315,360.20x = 472,262.70 × 209,606.60
  4. Step 4: Simplify right side
    315,360.20x = 98,989,378,853.82
  5. Step 5: Solve for x
    x = 98,989,378,853.82/315,360.20
  6. Step 6: Final answer
    x = 313,893.06

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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.