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Finding the Fourth Proportional to 303,576.39, 455,371.88 and 103,895.46

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Solution

The fourth proportional to 303,576.39, 455,371.88 and 103,895.46 is: 155,845.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,576.39 : 455,371.88 = 103,895.46 : x
  2. Step 2: Convert to fraction form
    303,576.39/455,371.88 = 103,895.46/x
  3. Step 3: Cross multiply
    303,576.39x = 455,371.88 × 103,895.46
  4. Step 4: Simplify right side
    303,576.39x = 47,311,070,424.19
  5. Step 5: Solve for x
    x = 47,311,070,424.19/303,576.39
  6. Step 6: Final answer
    x = 155,845.68

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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.