Home / 346,724.20-520,086.30-213,171.40

Finding the Fourth Proportional to 346,724.20, 520,086.30 and 213,171.40

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Solution

The fourth proportional to 346,724.20, 520,086.30 and 213,171.40 is: 319,757.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,724.20 : 520,086.30 = 213,171.40 : x
  2. Step 2: Convert to fraction form
    346,724.20/520,086.30 = 213,171.40/x
  3. Step 3: Cross multiply
    346,724.20x = 520,086.30 × 213,171.40
  4. Step 4: Simplify right side
    346,724.20x = 110,867,524,691.82
  5. Step 5: Solve for x
    x = 110,867,524,691.82/346,724.20
  6. Step 6: Final answer
    x = 319,757.10

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1.5x scale

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.