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Finding the Fourth Proportional to 189,688.72, 284,563.80 and 58,330

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Solution

The fourth proportional to 189,688.72, 284,563.80 and 58,330 is: 87,504.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,688.72 : 284,563.80 = 58,330 : x
  2. Step 2: Convert to fraction form
    189,688.72/284,563.80 = 58,330/x
  3. Step 3: Cross multiply
    189,688.72x = 284,563.80 × 58,330
  4. Step 4: Simplify right side
    189,688.72x = 16,598,606,454
  5. Step 5: Solve for x
    x = 16,598,606,454/189,688.72
  6. Step 6: Final answer
    x = 87,504.45

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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.