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Finding the Fourth Proportional to 185,317.19, 255,738.17 and 100,434.23

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Solution

The fourth proportional to 185,317.19, 255,738.17 and 100,434.23 is: 138,599.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,317.19 : 255,738.17 = 100,434.23 : x
  2. Step 2: Convert to fraction form
    185,317.19/255,738.17 = 100,434.23/x
  3. Step 3: Cross multiply
    185,317.19x = 255,738.17 × 100,434.23
  4. Step 4: Simplify right side
    185,317.19x = 25,684,865,683.39
  5. Step 5: Solve for x
    x = 25,684,865,683.39/185,317.19
  6. Step 6: Final answer
    x = 138,599.48

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.