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Finding the Fourth Proportional to 360,146.62, 496,409.61 and 255,405.52

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Solution

The fourth proportional to 360,146.62, 496,409.61 and 255,405.52 is: 352,039.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,146.62 : 496,409.61 = 255,405.52 : x
  2. Step 2: Convert to fraction form
    360,146.62/496,409.61 = 255,405.52/x
  3. Step 3: Cross multiply
    360,146.62x = 496,409.61 × 255,405.52
  4. Step 4: Simplify right side
    360,146.62x = 126,785,754,575.05
  5. Step 5: Solve for x
    x = 126,785,754,575.05/360,146.62
  6. Step 6: Final answer
    x = 352,039.27

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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.