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Finding the Fourth Proportional to 315,131.58, 434,802.87 and 192,592.62

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Solution

The fourth proportional to 315,131.58, 434,802.87 and 192,592.62 is: 265,729.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,131.58 : 434,802.87 = 192,592.62 : x
  2. Step 2: Convert to fraction form
    315,131.58/434,802.87 = 192,592.62/x
  3. Step 3: Cross multiply
    315,131.58x = 434,802.87 × 192,592.62
  4. Step 4: Simplify right side
    315,131.58x = 83,739,823,916.82
  5. Step 5: Solve for x
    x = 83,739,823,916.82/315,131.58
  6. Step 6: Final answer
    x = 265,729.71

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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.