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Finding the Fourth Proportional to 189,750.78, 284,672.87 and 133,700.36

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Solution

The fourth proportional to 189,750.78, 284,672.87 and 133,700.36 is: 200,583.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,750.78 : 284,672.87 = 133,700.36 : x
  2. Step 2: Convert to fraction form
    189,750.78/284,672.87 = 133,700.36/x
  3. Step 3: Cross multiply
    189,750.78x = 284,672.87 × 133,700.36
  4. Step 4: Simplify right side
    189,750.78x = 38,060,864,759.91
  5. Step 5: Solve for x
    x = 38,060,864,759.91/189,750.78
  6. Step 6: Final answer
    x = 200,583.45

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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.