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Finding the Fourth Proportional to 483,293.51, 666,870.90 and 279,305.03

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Solution

The fourth proportional to 483,293.51, 666,870.90 and 279,305.03 is: 385,398.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,293.51 : 666,870.90 = 279,305.03 : x
  2. Step 2: Convert to fraction form
    483,293.51/666,870.90 = 279,305.03/x
  3. Step 3: Cross multiply
    483,293.51x = 666,870.90 × 279,305.03
  4. Step 4: Simplify right side
    483,293.51x = 186,260,395,334.10
  5. Step 5: Solve for x
    x = 186,260,395,334.10/483,293.51
  6. Step 6: Final answer
    x = 385,398.09

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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.