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Finding the Fourth Proportional to 347,028, 478,899.36 and 188,052

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Solution

The fourth proportional to 347,028, 478,899.36 and 188,052 is: 259,512.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,028 : 478,899.36 = 188,052 : x
  2. Step 2: Convert to fraction form
    347,028/478,899.36 = 188,052/x
  3. Step 3: Cross multiply
    347,028x = 478,899.36 × 188,052
  4. Step 4: Simplify right side
    347,028x = 90,057,982,446.72
  5. Step 5: Solve for x
    x = 90,057,982,446.72/347,028
  6. Step 6: Final answer
    x = 259,512.15

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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.