Home / 376,087.08-564,213.66-139,429.76

Finding the Fourth Proportional to 376,087.08, 564,213.66 and 139,429.76

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Solution

The fourth proportional to 376,087.08, 564,213.66 and 139,429.76 is: 209,175.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,087.08 : 564,213.66 = 139,429.76 : x
  2. Step 2: Convert to fraction form
    376,087.08/564,213.66 = 139,429.76/x
  3. Step 3: Cross multiply
    376,087.08x = 564,213.66 × 139,429.76
  4. Step 4: Simplify right side
    376,087.08x = 78,668,172,381.45
  5. Step 5: Solve for x
    x = 78,668,172,381.45/376,087.08
  6. Step 6: Final answer
    x = 209,175.42

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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.