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Finding the Fourth Proportional to 351,764.64, 485,444.07 and 215,873.64

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Solution

The fourth proportional to 351,764.64, 485,444.07 and 215,873.64 is: 297,911.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,764.64 : 485,444.07 = 215,873.64 : x
  2. Step 2: Convert to fraction form
    351,764.64/485,444.07 = 215,873.64/x
  3. Step 3: Cross multiply
    351,764.64x = 485,444.07 × 215,873.64
  4. Step 4: Simplify right side
    351,764.64x = 104,794,578,407.32
  5. Step 5: Solve for x
    x = 104,794,578,407.32/351,764.64
  6. Step 6: Final answer
    x = 297,911.06

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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.