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Finding the Fourth Proportional to 342,309.03, 472,350.12 and 189,322.92

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Solution

The fourth proportional to 342,309.03, 472,350.12 and 189,322.92 is: 261,245.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,309.03 : 472,350.12 = 189,322.92 : x
  2. Step 2: Convert to fraction form
    342,309.03/472,350.12 = 189,322.92/x
  3. Step 3: Cross multiply
    342,309.03x = 472,350.12 × 189,322.92
  4. Step 4: Simplify right side
    342,309.03x = 89,426,703,980.75
  5. Step 5: Solve for x
    x = 89,426,703,980.75/342,309.03
  6. Step 6: Final answer
    x = 261,245.53

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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.