Home / 346,788.60-520,355.70-197,143.80

Finding the Fourth Proportional to 346,788.60, 520,355.70 and 197,143.80

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Solution

The fourth proportional to 346,788.60, 520,355.70 and 197,143.80 is: 295,813.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,788.60 : 520,355.70 = 197,143.80 : x
  2. Step 2: Convert to fraction form
    346,788.60/520,355.70 = 197,143.80/x
  3. Step 3: Cross multiply
    346,788.60x = 520,355.70 × 197,143.80
  4. Step 4: Simplify right side
    346,788.60x = 102,584,900,049.66
  5. Step 5: Solve for x
    x = 102,584,900,049.66/346,788.60
  6. Step 6: Final answer
    x = 295,813.93

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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.