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Finding the Fourth Proportional to 325,556, 490,552.32 and 267,688

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Solution

The fourth proportional to 325,556, 490,552.32 and 267,688 is: 403,356.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,556 : 490,552.32 = 267,688 : x
  2. Step 2: Convert to fraction form
    325,556/490,552.32 = 267,688/x
  3. Step 3: Cross multiply
    325,556x = 490,552.32 × 267,688
  4. Step 4: Simplify right side
    325,556x = 131,314,969,436.16
  5. Step 5: Solve for x
    x = 131,314,969,436.16/325,556
  6. Step 6: Final answer
    x = 403,356.01

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.