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Finding the Fourth Proportional to 187,548, 281,322 and 56,220

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Solution

The fourth proportional to 187,548, 281,322 and 56,220 is: 84,330

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,548 : 281,322 = 56,220 : x
  2. Step 2: Convert to fraction form
    187,548/281,322 = 56,220/x
  3. Step 3: Cross multiply
    187,548x = 281,322 × 56,220
  4. Step 4: Simplify right side
    187,548x = 15,815,922,840
  5. Step 5: Solve for x
    x = 15,815,922,840/187,548
  6. Step 6: Final answer
    x = 84,330

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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.