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Finding the Fourth Proportional to 281,611.61, 422,417.41 and 187,026.54

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Solution

The fourth proportional to 281,611.61, 422,417.41 and 187,026.54 is: 280,539.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,611.61 : 422,417.41 = 187,026.54 : x
  2. Step 2: Convert to fraction form
    281,611.61/422,417.41 = 187,026.54/x
  3. Step 3: Cross multiply
    281,611.61x = 422,417.41 × 187,026.54
  4. Step 4: Simplify right side
    281,611.61x = 79,003,266,160.50
  5. Step 5: Solve for x
    x = 79,003,266,160.50/281,611.61
  6. Step 6: Final answer
    x = 280,539.80

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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.