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Finding the Fourth Proportional to 343,648.62, 474,212.31 and 190,677.12

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Solution

The fourth proportional to 343,648.62, 474,212.31 and 190,677.12 is: 263,121.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,648.62 : 474,212.31 = 190,677.12 : x
  2. Step 2: Convert to fraction form
    343,648.62/474,212.31 = 190,677.12/x
  3. Step 3: Cross multiply
    343,648.62x = 474,212.31 × 190,677.12
  4. Step 4: Simplify right side
    343,648.62x = 90,421,434,214.90
  5. Step 5: Solve for x
    x = 90,421,434,214.90/343,648.62
  6. Step 6: Final answer
    x = 263,121.77

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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.