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Finding the Fourth Proportional to 342,374.04, 472,490.28 and 189,409.73

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Solution

The fourth proportional to 342,374.04, 472,490.28 and 189,409.73 is: 261,393.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,374.04 : 472,490.28 = 189,409.73 : x
  2. Step 2: Convert to fraction form
    342,374.04/472,490.28 = 189,409.73/x
  3. Step 3: Cross multiply
    342,374.04x = 472,490.28 × 189,409.73
  4. Step 4: Simplify right side
    342,374.04x = 89,494,253,999.97
  5. Step 5: Solve for x
    x = 89,494,253,999.97/342,374.04
  6. Step 6: Final answer
    x = 261,393.22

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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.