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Finding the Fourth Proportional to 189,442.70, 284,170.17 and 99,462.63

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Solution

The fourth proportional to 189,442.70, 284,170.17 and 99,462.63 is: 149,197.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,442.70 : 284,170.17 = 99,462.63 : x
  2. Step 2: Convert to fraction form
    189,442.70/284,170.17 = 99,462.63/x
  3. Step 3: Cross multiply
    189,442.70x = 284,170.17 × 99,462.63
  4. Step 4: Simplify right side
    189,442.70x = 28,264,313,914.37
  5. Step 5: Solve for x
    x = 28,264,313,914.37/189,442.70
  6. Step 6: Final answer
    x = 149,197.17

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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.