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Finding the Fourth Proportional to 329,512.32, 454,775.58 and 208,664.64

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Solution

The fourth proportional to 329,512.32, 454,775.58 and 208,664.64 is: 287,987.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,512.32 : 454,775.58 = 208,664.64 : x
  2. Step 2: Convert to fraction form
    329,512.32/454,775.58 = 208,664.64/x
  3. Step 3: Cross multiply
    329,512.32x = 454,775.58 × 208,664.64
  4. Step 4: Simplify right side
    329,512.32x = 94,895,582,681.49
  5. Step 5: Solve for x
    x = 94,895,582,681.49/329,512.32
  6. Step 6: Final answer
    x = 287,987.97

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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.