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Finding the Fourth Proportional to 353,908.53, 488,376.95 and 192,762.81

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Solution

The fourth proportional to 353,908.53, 488,376.95 and 192,762.81 is: 266,003.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,908.53 : 488,376.95 = 192,762.81 : x
  2. Step 2: Convert to fraction form
    353,908.53/488,376.95 = 192,762.81/x
  3. Step 3: Cross multiply
    353,908.53x = 488,376.95 × 192,762.81
  4. Step 4: Simplify right side
    353,908.53x = 94,140,912,257.42
  5. Step 5: Solve for x
    x = 94,140,912,257.42/353,908.53
  6. Step 6: Final answer
    x = 266,003.51

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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.