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Finding the Fourth Proportional to 347,608, 479,699.04 and 188,632

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Solution

The fourth proportional to 347,608, 479,699.04 and 188,632 is: 260,312.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,608 : 479,699.04 = 188,632 : x
  2. Step 2: Convert to fraction form
    347,608/479,699.04 = 188,632/x
  3. Step 3: Cross multiply
    347,608x = 479,699.04 × 188,632
  4. Step 4: Simplify right side
    347,608x = 90,486,589,313.28
  5. Step 5: Solve for x
    x = 90,486,589,313.28/347,608
  6. Step 6: Final answer
    x = 260,312.16

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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.