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Finding the Fourth Proportional to 253,171.25, 349,464.30 and 145,784.08

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Solution

The fourth proportional to 253,171.25, 349,464.30 and 145,784.08 is: 201,232.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,171.25 : 349,464.30 = 145,784.08 : x
  2. Step 2: Convert to fraction form
    253,171.25/349,464.30 = 145,784.08/x
  3. Step 3: Cross multiply
    253,171.25x = 349,464.30 × 145,784.08
  4. Step 4: Simplify right side
    253,171.25x = 50,946,330,594.68
  5. Step 5: Solve for x
    x = 50,946,330,594.68/253,171.25
  6. Step 6: Final answer
    x = 201,232.69

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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.