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Finding the Fourth Proportional to 342,108.92, 472,074.13 and 189,122.45

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Solution

The fourth proportional to 342,108.92, 472,074.13 and 189,122.45 is: 260,968.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,108.92 : 472,074.13 = 189,122.45 : x
  2. Step 2: Convert to fraction form
    342,108.92/472,074.13 = 189,122.45/x
  3. Step 3: Cross multiply
    342,108.92x = 472,074.13 × 189,122.45
  4. Step 4: Simplify right side
    342,108.92x = 89,279,816,047.22
  5. Step 5: Solve for x
    x = 89,279,816,047.22/342,108.92
  6. Step 6: Final answer
    x = 260,968.98

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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.