Home / 346,945.20-520,612.20-147,231.60

Finding the Fourth Proportional to 346,945.20, 520,612.20 and 147,231.60

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Solution

The fourth proportional to 346,945.20, 520,612.20 and 147,231.60 is: 220,929.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,945.20 : 520,612.20 = 147,231.60 : x
  2. Step 2: Convert to fraction form
    346,945.20/520,612.20 = 147,231.60/x
  3. Step 3: Cross multiply
    346,945.20x = 520,612.20 × 147,231.60
  4. Step 4: Simplify right side
    346,945.20x = 76,650,567,185.52
  5. Step 5: Solve for x
    x = 76,650,567,185.52/346,945.20
  6. Step 6: Final answer
    x = 220,929.90

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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.