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Finding the Fourth Proportional to 230,690.60, 345,744.30 and 168,288.20

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Solution

The fourth proportional to 230,690.60, 345,744.30 and 168,288.20 is: 252,219.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,690.60 : 345,744.30 = 168,288.20 : x
  2. Step 2: Convert to fraction form
    230,690.60/345,744.30 = 168,288.20/x
  3. Step 3: Cross multiply
    230,690.60x = 345,744.30 × 168,288.20
  4. Step 4: Simplify right side
    230,690.60x = 58,184,685,907.26
  5. Step 5: Solve for x
    x = 58,184,685,907.26/230,690.60
  6. Step 6: Final answer
    x = 252,219.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.