Home / 640,147.16-960,363.60-240,791.24

Finding the Fourth Proportional to 640,147.16, 960,363.60 and 240,791.24

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Solution

The fourth proportional to 640,147.16, 960,363.60 and 240,791.24 is: 361,240.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    640,147.16 : 960,363.60 = 240,791.24 : x
  2. Step 2: Convert to fraction form
    640,147.16/960,363.60 = 240,791.24/x
  3. Step 3: Cross multiply
    640,147.16x = 960,363.60 × 240,791.24
  4. Step 4: Simplify right side
    640,147.16x = 231,247,142,094.86
  5. Step 5: Solve for x
    x = 231,247,142,094.86/640,147.16
  6. Step 6: Final answer
    x = 361,240.60

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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.