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Finding the Fourth Proportional to 483,346.68, 666,867.96 and 279,323.28

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Solution

The fourth proportional to 483,346.68, 666,867.96 and 279,323.28 is: 385,379.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,346.68 : 666,867.96 = 279,323.28 : x
  2. Step 2: Convert to fraction form
    483,346.68/666,867.96 = 279,323.28/x
  3. Step 3: Cross multiply
    483,346.68x = 666,867.96 × 279,323.28
  4. Step 4: Simplify right side
    483,346.68x = 186,271,745,914.11
  5. Step 5: Solve for x
    x = 186,271,745,914.11/483,346.68
  6. Step 6: Final answer
    x = 385,379.18

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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.