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Finding the Fourth Proportional to 329,807.08, 455,132.82 and 178,903.72

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Solution

The fourth proportional to 329,807.08, 455,132.82 and 178,903.72 is: 246,886.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,807.08 : 455,132.82 = 178,903.72 : x
  2. Step 2: Convert to fraction form
    329,807.08/455,132.82 = 178,903.72/x
  3. Step 3: Cross multiply
    329,807.08x = 455,132.82 × 178,903.72
  4. Step 4: Simplify right side
    329,807.08x = 81,424,954,592.09
  5. Step 5: Solve for x
    x = 81,424,954,592.09/329,807.08
  6. Step 6: Final answer
    x = 246,886.62

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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.