Home / 346,057.60-518,989.20-109,472.80

Finding the Fourth Proportional to 346,057.60, 518,989.20 and 109,472.80

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Solution

The fourth proportional to 346,057.60, 518,989.20 and 109,472.80 is: 164,178.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,057.60 : 518,989.20 = 109,472.80 : x
  2. Step 2: Convert to fraction form
    346,057.60/518,989.20 = 109,472.80/x
  3. Step 3: Cross multiply
    346,057.60x = 518,989.20 × 109,472.80
  4. Step 4: Simplify right side
    346,057.60x = 56,815,200,893.76
  5. Step 5: Solve for x
    x = 56,815,200,893.76/346,057.60
  6. Step 6: Final answer
    x = 164,178.45

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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.