Home / 318,776.09-477,942.18-141,186.83

Finding the Fourth Proportional to 318,776.09, 477,942.18 and 141,186.83

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Solution

The fourth proportional to 318,776.09, 477,942.18 and 141,186.83 is: 211,681.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,776.09 : 477,942.18 = 141,186.83 : x
  2. Step 2: Convert to fraction form
    318,776.09/477,942.18 = 141,186.83/x
  3. Step 3: Cross multiply
    318,776.09x = 477,942.18 × 141,186.83
  4. Step 4: Simplify right side
    318,776.09x = 67,479,138,927.78
  5. Step 5: Solve for x
    x = 67,479,138,927.78/318,776.09
  6. Step 6: Final answer
    x = 211,681.94

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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.