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Finding the Fourth Proportional to 329,191.50, 454,284.30 and 178,288.50

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Solution

The fourth proportional to 329,191.50, 454,284.30 and 178,288.50 is: 246,038.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,191.50 : 454,284.30 = 178,288.50 : x
  2. Step 2: Convert to fraction form
    329,191.50/454,284.30 = 178,288.50/x
  3. Step 3: Cross multiply
    329,191.50x = 454,284.30 × 178,288.50
  4. Step 4: Simplify right side
    329,191.50x = 80,993,666,420.55
  5. Step 5: Solve for x
    x = 80,993,666,420.55/329,191.50
  6. Step 6: Final answer
    x = 246,038.15

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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.