Home / 346,815.60-520,012.20-136,201.20

Finding the Fourth Proportional to 346,815.60, 520,012.20 and 136,201.20

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Solution

The fourth proportional to 346,815.60, 520,012.20 and 136,201.20 is: 204,218.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,815.60 : 520,012.20 = 136,201.20 : x
  2. Step 2: Convert to fraction form
    346,815.60/520,012.20 = 136,201.20/x
  3. Step 3: Cross multiply
    346,815.60x = 520,012.20 × 136,201.20
  4. Step 4: Simplify right side
    346,815.60x = 70,826,285,654.64
  5. Step 5: Solve for x
    x = 70,826,285,654.64/346,815.60
  6. Step 6: Final answer
    x = 204,218.86

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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.