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Finding the Fourth Proportional to 253,265.32, 349,575.24 and 157,715.56

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Solution

The fourth proportional to 253,265.32, 349,575.24 and 157,715.56 is: 217,690.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,265.32 : 349,575.24 = 157,715.56 : x
  2. Step 2: Convert to fraction form
    253,265.32/349,575.24 = 157,715.56/x
  3. Step 3: Cross multiply
    253,265.32x = 349,575.24 × 157,715.56
  4. Step 4: Simplify right side
    253,265.32x = 55,133,454,738.73
  5. Step 5: Solve for x
    x = 55,133,454,738.73/253,265.32
  6. Step 6: Final answer
    x = 217,690.50

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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.