Home / 320,590.03-480,752.05-118,197.64

Finding the Fourth Proportional to 320,590.03, 480,752.05 and 118,197.64

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Solution

The fourth proportional to 320,590.03, 480,752.05 and 118,197.64 is: 177,247.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,590.03 : 480,752.05 = 118,197.64 : x
  2. Step 2: Convert to fraction form
    320,590.03/480,752.05 = 118,197.64/x
  3. Step 3: Cross multiply
    320,590.03x = 480,752.05 × 118,197.64
  4. Step 4: Simplify right side
    320,590.03x = 56,823,757,735.16
  5. Step 5: Solve for x
    x = 56,823,757,735.16/320,590.03
  6. Step 6: Final answer
    x = 177,247.43

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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.