Home / 578,087.12-867,213.36-178,758.68

Finding the Fourth Proportional to 578,087.12, 867,213.36 and 178,758.68

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Solution

The fourth proportional to 578,087.12, 867,213.36 and 178,758.68 is: 268,163.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,087.12 : 867,213.36 = 178,758.68 : x
  2. Step 2: Convert to fraction form
    578,087.12/867,213.36 = 178,758.68/x
  3. Step 3: Cross multiply
    578,087.12x = 867,213.36 × 178,758.68
  4. Step 4: Simplify right side
    578,087.12x = 155,021,911,175.90
  5. Step 5: Solve for x
    x = 155,021,911,175.90/578,087.12
  6. Step 6: Final answer
    x = 268,163.58

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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.