Home / 219,824.70-329,737.05-131,178.30

Finding the Fourth Proportional to 219,824.70, 329,737.05 and 131,178.30

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Solution

The fourth proportional to 219,824.70, 329,737.05 and 131,178.30 is: 196,767.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,824.70 : 329,737.05 = 131,178.30 : x
  2. Step 2: Convert to fraction form
    219,824.70/329,737.05 = 131,178.30/x
  3. Step 3: Cross multiply
    219,824.70x = 329,737.05 × 131,178.30
  4. Step 4: Simplify right side
    219,824.70x = 43,254,345,666.02
  5. Step 5: Solve for x
    x = 43,254,345,666.02/219,824.70
  6. Step 6: Final answer
    x = 196,767.45

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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.