Home / 355,575.20-491,089.86-328,671.02

Finding the Fourth Proportional to 355,575.20, 491,089.86 and 328,671.02

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Solution

The fourth proportional to 355,575.20, 491,089.86 and 328,671.02 is: 453,932.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,575.20 : 491,089.86 = 328,671.02 : x
  2. Step 2: Convert to fraction form
    355,575.20/491,089.86 = 328,671.02/x
  3. Step 3: Cross multiply
    355,575.20x = 491,089.86 × 328,671.02
  4. Step 4: Simplify right side
    355,575.20x = 161,407,005,197.86
  5. Step 5: Solve for x
    x = 161,407,005,197.86/355,575.20
  6. Step 6: Final answer
    x = 453,932.12

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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.