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Finding the Fourth Proportional to 358,711.56, 537,880.50 and 133,887.09

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Solution

The fourth proportional to 358,711.56, 537,880.50 and 133,887.09 is: 200,760.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,711.56 : 537,880.50 = 133,887.09 : x
  2. Step 2: Convert to fraction form
    358,711.56/537,880.50 = 133,887.09/x
  3. Step 3: Cross multiply
    358,711.56x = 537,880.50 × 133,887.09
  4. Step 4: Simplify right side
    358,711.56x = 72,015,254,912.75
  5. Step 5: Solve for x
    x = 72,015,254,912.75/358,711.56
  6. Step 6: Final answer
    x = 200,760.90

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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.