Home / 346,816.80-519,836.40-147,103.20

Finding the Fourth Proportional to 346,816.80, 519,836.40 and 147,103.20

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Solution

The fourth proportional to 346,816.80, 519,836.40 and 147,103.20 is: 220,489.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,816.80 : 519,836.40 = 147,103.20 : x
  2. Step 2: Convert to fraction form
    346,816.80/519,836.40 = 147,103.20/x
  3. Step 3: Cross multiply
    346,816.80x = 519,836.40 × 147,103.20
  4. Step 4: Simplify right side
    346,816.80x = 76,469,597,916.48
  5. Step 5: Solve for x
    x = 76,469,597,916.48/346,816.80
  6. Step 6: Final answer
    x = 220,489.89

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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.