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Finding the Fourth Proportional to 360,145.12, 496,407.54 and 255,404.02

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Solution

The fourth proportional to 360,145.12, 496,407.54 and 255,404.02 is: 352,037.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,145.12 : 496,407.54 = 255,404.02 : x
  2. Step 2: Convert to fraction form
    360,145.12/496,407.54 = 255,404.02/x
  3. Step 3: Cross multiply
    360,145.12x = 496,407.54 × 255,404.02
  4. Step 4: Simplify right side
    360,145.12x = 126,784,481,274.31
  5. Step 5: Solve for x
    x = 126,784,481,274.31/360,145.12
  6. Step 6: Final answer
    x = 352,037.20

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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.