Home / 346,734.20-520,101.30-206,766.20

Finding the Fourth Proportional to 346,734.20, 520,101.30 and 206,766.20

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Solution

The fourth proportional to 346,734.20, 520,101.30 and 206,766.20 is: 310,149.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,734.20 : 520,101.30 = 206,766.20 : x
  2. Step 2: Convert to fraction form
    346,734.20/520,101.30 = 206,766.20/x
  3. Step 3: Cross multiply
    346,734.20x = 520,101.30 × 206,766.20
  4. Step 4: Simplify right side
    346,734.20x = 107,539,369,416.06
  5. Step 5: Solve for x
    x = 107,539,369,416.06/346,734.20
  6. Step 6: Final answer
    x = 310,149.30

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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.