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Finding the Fourth Proportional to 353,961.62, 488,430.62 and 198,888.29

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Solution

The fourth proportional to 353,961.62, 488,430.62 and 198,888.29 is: 274,445.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,961.62 : 488,430.62 = 198,888.29 : x
  2. Step 2: Convert to fraction form
    353,961.62/488,430.62 = 198,888.29/x
  3. Step 3: Cross multiply
    353,961.62x = 488,430.62 × 198,888.29
  4. Step 4: Simplify right side
    353,961.62x = 97,143,128,850.51
  5. Step 5: Solve for x
    x = 97,143,128,850.51/353,961.62
  6. Step 6: Final answer
    x = 274,445.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.