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Finding the Fourth Proportional to 187,519.51, 281,307.01 and 54,382.51

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Solution

The fourth proportional to 187,519.51, 281,307.01 and 54,382.51 is: 81,581.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,519.51 : 281,307.01 = 54,382.51 : x
  2. Step 2: Convert to fraction form
    187,519.51/281,307.01 = 54,382.51/x
  3. Step 3: Cross multiply
    187,519.51x = 281,307.01 × 54,382.51
  4. Step 4: Simplify right side
    187,519.51x = 15,298,181,284.40
  5. Step 5: Solve for x
    x = 15,298,181,284.40/187,519.51
  6. Step 6: Final answer
    x = 81,581.81

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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.