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Finding the Fourth Proportional to 371,205.69, 512,265.20 and 201,439.77

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Solution

The fourth proportional to 371,205.69, 512,265.20 and 201,439.77 is: 277,987.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,205.69 : 512,265.20 = 201,439.77 : x
  2. Step 2: Convert to fraction form
    371,205.69/512,265.20 = 201,439.77/x
  3. Step 3: Cross multiply
    371,205.69x = 512,265.20 × 201,439.77
  4. Step 4: Simplify right side
    371,205.69x = 103,190,583,059.81
  5. Step 5: Solve for x
    x = 103,190,583,059.81/371,205.69
  6. Step 6: Final answer
    x = 277,987.61

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1.5x scale

Why These Related Problems?

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