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Finding the Fourth Proportional to 315,060.32, 434,537.50 and 201,893.60

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Solution

The fourth proportional to 315,060.32, 434,537.50 and 201,893.60 is: 278,455.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,060.32 : 434,537.50 = 201,893.60 : x
  2. Step 2: Convert to fraction form
    315,060.32/434,537.50 = 201,893.60/x
  3. Step 3: Cross multiply
    315,060.32x = 434,537.50 × 201,893.60
  4. Step 4: Simplify right side
    315,060.32x = 87,730,340,210
  5. Step 5: Solve for x
    x = 87,730,340,210/315,060.32
  6. Step 6: Final answer
    x = 278,455.69

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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.