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Finding the Fourth Proportional to 187,400.40, 281,100.60 and 61,040.40

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Solution

The fourth proportional to 187,400.40, 281,100.60 and 61,040.40 is: 91,560.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,400.40 : 281,100.60 = 61,040.40 : x
  2. Step 2: Convert to fraction form
    187,400.40/281,100.60 = 61,040.40/x
  3. Step 3: Cross multiply
    187,400.40x = 281,100.60 × 61,040.40
  4. Step 4: Simplify right side
    187,400.40x = 17,158,493,064.24
  5. Step 5: Solve for x
    x = 17,158,493,064.24/187,400.40
  6. Step 6: Final answer
    x = 91,560.60

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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.