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Finding the Fourth Proportional to 342,714.09, 472,960.23 and 189,752.28

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Solution

The fourth proportional to 342,714.09, 472,960.23 and 189,752.28 is: 261,866.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,714.09 : 472,960.23 = 189,752.28 : x
  2. Step 2: Convert to fraction form
    342,714.09/472,960.23 = 189,752.28/x
  3. Step 3: Cross multiply
    342,714.09x = 472,960.23 × 189,752.28
  4. Step 4: Simplify right side
    342,714.09x = 89,745,281,991.82
  5. Step 5: Solve for x
    x = 89,745,281,991.82/342,714.09
  6. Step 6: Final answer
    x = 261,866.33

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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.