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Finding the Fourth Proportional to 234,518.40, 351,568.80 and 84,726

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Solution

The fourth proportional to 234,518.40, 351,568.80 and 84,726 is: 127,013.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,518.40 : 351,568.80 = 84,726 : x
  2. Step 2: Convert to fraction form
    234,518.40/351,568.80 = 84,726/x
  3. Step 3: Cross multiply
    234,518.40x = 351,568.80 × 84,726
  4. Step 4: Simplify right side
    234,518.40x = 29,787,018,148.80
  5. Step 5: Solve for x
    x = 29,787,018,148.80/234,518.40
  6. Step 6: Final answer
    x = 127,013.57

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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.