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Finding the Fourth Proportional to 353,750.30, 488,122.34 and 198,695.64

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Solution

The fourth proportional to 353,750.30, 488,122.34 and 198,695.64 is: 274,170.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,750.30 : 488,122.34 = 198,695.64 : x
  2. Step 2: Convert to fraction form
    353,750.30/488,122.34 = 198,695.64/x
  3. Step 3: Cross multiply
    353,750.30x = 488,122.34 × 198,695.64
  4. Step 4: Simplify right side
    353,750.30x = 96,987,782,326.69
  5. Step 5: Solve for x
    x = 96,987,782,326.69/353,750.30
  6. Step 6: Final answer
    x = 274,170.17

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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.