Home / 355,867.90-533,808.02-131,112.64

Finding the Fourth Proportional to 355,867.90, 533,808.02 and 131,112.64

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Solution

The fourth proportional to 355,867.90, 533,808.02 and 131,112.64 is: 196,671.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,867.90 : 533,808.02 = 131,112.64 : x
  2. Step 2: Convert to fraction form
    355,867.90/533,808.02 = 131,112.64/x
  3. Step 3: Cross multiply
    355,867.90x = 533,808.02 × 131,112.64
  4. Step 4: Simplify right side
    355,867.90x = 69,988,979,750.41
  5. Step 5: Solve for x
    x = 69,988,979,750.41/355,867.90
  6. Step 6: Final answer
    x = 196,671.24

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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.