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Finding the Fourth Proportional to 253,816.57, 380,725.73 and 64,276.89

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Solution

The fourth proportional to 253,816.57, 380,725.73 and 64,276.89 is: 96,415.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,816.57 : 380,725.73 = 64,276.89 : x
  2. Step 2: Convert to fraction form
    253,816.57/380,725.73 = 64,276.89/x
  3. Step 3: Cross multiply
    253,816.57x = 380,725.73 × 64,276.89
  4. Step 4: Simplify right side
    253,816.57x = 24,471,865,867.38
  5. Step 5: Solve for x
    x = 24,471,865,867.38/253,816.57
  6. Step 6: Final answer
    x = 96,415.56

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1.5x scale

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.