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Finding the Fourth Proportional to 342,126.16, 472,114.96 and 189,155.44

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Solution

The fourth proportional to 342,126.16, 472,114.96 and 189,155.44 is: 261,023.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,126.16 : 472,114.96 = 189,155.44 : x
  2. Step 2: Convert to fraction form
    342,126.16/472,114.96 = 189,155.44/x
  3. Step 3: Cross multiply
    342,126.16x = 472,114.96 × 189,155.44
  4. Step 4: Simplify right side
    342,126.16x = 89,303,112,989.38
  5. Step 5: Solve for x
    x = 89,303,112,989.38/342,126.16
  6. Step 6: Final answer
    x = 261,023.92

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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.