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Finding the Fourth Proportional to 351,954.47, 483,898.72 and 313,346.63

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Solution

The fourth proportional to 351,954.47, 483,898.72 and 313,346.63 is: 430,817.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,954.47 : 483,898.72 = 313,346.63 : x
  2. Step 2: Convert to fraction form
    351,954.47/483,898.72 = 313,346.63/x
  3. Step 3: Cross multiply
    351,954.47x = 483,898.72 × 313,346.63
  4. Step 4: Simplify right side
    351,954.47x = 151,628,033,173.31
  5. Step 5: Solve for x
    x = 151,628,033,173.31/351,954.47
  6. Step 6: Final answer
    x = 430,817.18

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.