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Finding the Fourth Proportional to 342,029.76, 472,000.32 and 191,126.76

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Solution

The fourth proportional to 342,029.76, 472,000.32 and 191,126.76 is: 263,754.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,029.76 : 472,000.32 = 191,126.76 : x
  2. Step 2: Convert to fraction form
    342,029.76/472,000.32 = 191,126.76/x
  3. Step 3: Cross multiply
    342,029.76x = 472,000.32 × 191,126.76
  4. Step 4: Simplify right side
    342,029.76x = 90,211,891,880.56
  5. Step 5: Solve for x
    x = 90,211,891,880.56/342,029.76
  6. Step 6: Final answer
    x = 263,754.51

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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.