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Finding the Fourth Proportional to 187,639.70, 281,460.12 and 45,484.42

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Solution

The fourth proportional to 187,639.70, 281,460.12 and 45,484.42 is: 68,226.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,639.70 : 281,460.12 = 45,484.42 : x
  2. Step 2: Convert to fraction form
    187,639.70/281,460.12 = 45,484.42/x
  3. Step 3: Cross multiply
    187,639.70x = 281,460.12 × 45,484.42
  4. Step 4: Simplify right side
    187,639.70x = 12,802,049,607.68
  5. Step 5: Solve for x
    x = 12,802,049,607.68/187,639.70
  6. Step 6: Final answer
    x = 68,226.76

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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.