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Finding the Fourth Proportional to 483,066.81, 666,662.40 and 279,155.19

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Solution

The fourth proportional to 483,066.81, 666,662.40 and 279,155.19 is: 385,251.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,066.81 : 666,662.40 = 279,155.19 : x
  2. Step 2: Convert to fraction form
    483,066.81/666,662.40 = 279,155.19/x
  3. Step 3: Cross multiply
    483,066.81x = 666,662.40 × 279,155.19
  4. Step 4: Simplify right side
    483,066.81x = 186,102,268,937.86
  5. Step 5: Solve for x
    x = 186,102,268,937.86/483,066.81
  6. Step 6: Final answer
    x = 385,251.62

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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.