Home / 380,423.28-524,980.35-205,992.60

Finding the Fourth Proportional to 380,423.28, 524,980.35 and 205,992.60

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Solution

The fourth proportional to 380,423.28, 524,980.35 and 205,992.60 is: 284,267.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,423.28 : 524,980.35 = 205,992.60 : x
  2. Step 2: Convert to fraction form
    380,423.28/524,980.35 = 205,992.60/x
  3. Step 3: Cross multiply
    380,423.28x = 524,980.35 × 205,992.60
  4. Step 4: Simplify right side
    380,423.28x = 108,142,067,245.41
  5. Step 5: Solve for x
    x = 108,142,067,245.41/380,423.28
  6. Step 6: Final answer
    x = 284,267.74

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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.