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Finding the Fourth Proportional to 342,108, 472,094.19 and 187,056.45

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Solution

The fourth proportional to 342,108, 472,094.19 and 187,056.45 is: 258,129.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,108 : 472,094.19 = 187,056.45 : x
  2. Step 2: Convert to fraction form
    342,108/472,094.19 = 187,056.45/x
  3. Step 3: Cross multiply
    342,108x = 472,094.19 × 187,056.45
  4. Step 4: Simplify right side
    342,108x = 88,308,263,247.03
  5. Step 5: Solve for x
    x = 88,308,263,247.03/342,108
  6. Step 6: Final answer
    x = 258,129.78

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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.