Home / 378,428.96-567,631.09-153,722.91

Finding the Fourth Proportional to 378,428.96, 567,631.09 and 153,722.91

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Solution

The fourth proportional to 378,428.96, 567,631.09 and 153,722.91 is: 230,579.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,428.96 : 567,631.09 = 153,722.91 : x
  2. Step 2: Convert to fraction form
    378,428.96/567,631.09 = 153,722.91/x
  3. Step 3: Cross multiply
    378,428.96x = 567,631.09 × 153,722.91
  4. Step 4: Simplify right side
    378,428.96x = 87,257,905,282.04
  5. Step 5: Solve for x
    x = 87,257,905,282.04/378,428.96
  6. Step 6: Final answer
    x = 230,579.35

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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.