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Finding the Fourth Proportional to 286,524.34, 429,730.92 and 272,299.73

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Solution

The fourth proportional to 286,524.34, 429,730.92 and 272,299.73 is: 408,396.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,524.34 : 429,730.92 = 272,299.73 : x
  2. Step 2: Convert to fraction form
    286,524.34/429,730.92 = 272,299.73/x
  3. Step 3: Cross multiply
    286,524.34x = 429,730.92 × 272,299.73
  4. Step 4: Simplify right side
    286,524.34x = 117,015,611,340.00
  5. Step 5: Solve for x
    x = 117,015,611,340.00/286,524.34
  6. Step 6: Final answer
    x = 408,396.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.