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Finding the Fourth Proportional to 303,710.70, 455,760.45 and 177,350.70

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Solution

The fourth proportional to 303,710.70, 455,760.45 and 177,350.70 is: 266,139.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,710.70 : 455,760.45 = 177,350.70 : x
  2. Step 2: Convert to fraction form
    303,710.70/455,760.45 = 177,350.70/x
  3. Step 3: Cross multiply
    303,710.70x = 455,760.45 × 177,350.70
  4. Step 4: Simplify right side
    303,710.70x = 80,829,434,839.82
  5. Step 5: Solve for x
    x = 80,829,434,839.82/303,710.70
  6. Step 6: Final answer
    x = 266,139.57

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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.