Home / 309,516.18-427,220.90-182,265.58

Finding the Fourth Proportional to 309,516.18, 427,220.90 and 182,265.58

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Solution

The fourth proportional to 309,516.18, 427,220.90 and 182,265.58 is: 251,578.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,516.18 : 427,220.90 = 182,265.58 : x
  2. Step 2: Convert to fraction form
    309,516.18/427,220.90 = 182,265.58/x
  3. Step 3: Cross multiply
    309,516.18x = 427,220.90 × 182,265.58
  4. Step 4: Simplify right side
    309,516.18x = 77,867,665,126.62
  5. Step 5: Solve for x
    x = 77,867,665,126.62/309,516.18
  6. Step 6: Final answer
    x = 251,578.66

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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.