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Finding the Fourth Proportional to 342,158.22, 472,137.12 and 189,175.77

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Solution

The fourth proportional to 342,158.22, 472,137.12 and 189,175.77 is: 261,039.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,158.22 : 472,137.12 = 189,175.77 : x
  2. Step 2: Convert to fraction form
    342,158.22/472,137.12 = 189,175.77/x
  3. Step 3: Cross multiply
    342,158.22x = 472,137.12 × 189,175.77
  4. Step 4: Simplify right side
    342,158.22x = 89,316,903,221.58
  5. Step 5: Solve for x
    x = 89,316,903,221.58/342,158.22
  6. Step 6: Final answer
    x = 261,039.77

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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.