Home / 353,962.62-488,432-198,889.29

Finding the Fourth Proportional to 353,962.62, 488,432 and 198,889.29

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Solution

The fourth proportional to 353,962.62, 488,432 and 198,889.29 is: 274,446.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,962.62 : 488,432 = 198,889.29 : x
  2. Step 2: Convert to fraction form
    353,962.62/488,432 = 198,889.29/x
  3. Step 3: Cross multiply
    353,962.62x = 488,432 × 198,889.29
  4. Step 4: Simplify right side
    353,962.62x = 97,143,893,693.28
  5. Step 5: Solve for x
    x = 97,143,893,693.28/353,962.62
  6. Step 6: Final answer
    x = 274,446.76

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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.