Home / 385,313.43-578,019.36-148,723.77

Finding the Fourth Proportional to 385,313.43, 578,019.36 and 148,723.77

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Solution

The fourth proportional to 385,313.43, 578,019.36 and 148,723.77 is: 223,104.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,313.43 : 578,019.36 = 148,723.77 : x
  2. Step 2: Convert to fraction form
    385,313.43/578,019.36 = 148,723.77/x
  3. Step 3: Cross multiply
    385,313.43x = 578,019.36 × 148,723.77
  4. Step 4: Simplify right side
    385,313.43x = 85,965,217,608.57
  5. Step 5: Solve for x
    x = 85,965,217,608.57/385,313.43
  6. Step 6: Final answer
    x = 223,104.65

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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.