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Finding the Fourth Proportional to 329,808.32, 455,005.60 and 202,262.40

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Solution

The fourth proportional to 329,808.32, 455,005.60 and 202,262.40 is: 279,042.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,808.32 : 455,005.60 = 202,262.40 : x
  2. Step 2: Convert to fraction form
    329,808.32/455,005.60 = 202,262.40/x
  3. Step 3: Cross multiply
    329,808.32x = 455,005.60 × 202,262.40
  4. Step 4: Simplify right side
    329,808.32x = 92,030,524,669.44
  5. Step 5: Solve for x
    x = 92,030,524,669.44/329,808.32
  6. Step 6: Final answer
    x = 279,042.46

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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.