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Finding the Fourth Proportional to 253,712.64, 380,604.51 and 103,974.24

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Solution

The fourth proportional to 253,712.64, 380,604.51 and 103,974.24 is: 155,975.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,712.64 : 380,604.51 = 103,974.24 : x
  2. Step 2: Convert to fraction form
    253,712.64/380,604.51 = 103,974.24/x
  3. Step 3: Cross multiply
    253,712.64x = 380,604.51 × 103,974.24
  4. Step 4: Simplify right side
    253,712.64x = 39,573,064,667.82
  5. Step 5: Solve for x
    x = 39,573,064,667.82/253,712.64
  6. Step 6: Final answer
    x = 155,975.93

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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.