Home / 289,442.42-399,438.33-162,115.22

Finding the Fourth Proportional to 289,442.42, 399,438.33 and 162,115.22

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Solution

The fourth proportional to 289,442.42, 399,438.33 and 162,115.22 is: 223,723.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,442.42 : 399,438.33 = 162,115.22 : x
  2. Step 2: Convert to fraction form
    289,442.42/399,438.33 = 162,115.22/x
  3. Step 3: Cross multiply
    289,442.42x = 399,438.33 × 162,115.22
  4. Step 4: Simplify right side
    289,442.42x = 64,755,032,744.38
  5. Step 5: Solve for x
    x = 64,755,032,744.38/289,442.42
  6. Step 6: Final answer
    x = 223,723.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.