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Finding the Fourth Proportional to 279,451, 385,739.58 and 166,271.32

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Solution

The fourth proportional to 279,451, 385,739.58 and 166,271.32 is: 229,512.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,451 : 385,739.58 = 166,271.32 : x
  2. Step 2: Convert to fraction form
    279,451/385,739.58 = 166,271.32/x
  3. Step 3: Cross multiply
    279,451x = 385,739.58 × 166,271.32
  4. Step 4: Simplify right side
    279,451x = 64,137,429,142.85
  5. Step 5: Solve for x
    x = 64,137,429,142.85/279,451
  6. Step 6: Final answer
    x = 229,512.25

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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.