Home / 346,778.20-520,037.70-136,372.60

Finding the Fourth Proportional to 346,778.20, 520,037.70 and 136,372.60

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Solution

The fourth proportional to 346,778.20, 520,037.70 and 136,372.60 is: 204,507.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,778.20 : 520,037.70 = 136,372.60 : x
  2. Step 2: Convert to fraction form
    346,778.20/520,037.70 = 136,372.60/x
  3. Step 3: Cross multiply
    346,778.20x = 520,037.70 × 136,372.60
  4. Step 4: Simplify right side
    346,778.20x = 70,918,893,247.02
  5. Step 5: Solve for x
    x = 70,918,893,247.02/346,778.20
  6. Step 6: Final answer
    x = 204,507.93

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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.