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Finding the Fourth Proportional to 243,589.20, 365,165.10 and 159,389.70

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Solution

The fourth proportional to 243,589.20, 365,165.10 and 159,389.70 is: 238,941.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,589.20 : 365,165.10 = 159,389.70 : x
  2. Step 2: Convert to fraction form
    243,589.20/365,165.10 = 159,389.70/x
  3. Step 3: Cross multiply
    243,589.20x = 365,165.10 × 159,389.70
  4. Step 4: Simplify right side
    243,589.20x = 58,203,555,739.47
  5. Step 5: Solve for x
    x = 58,203,555,739.47/243,589.20
  6. Step 6: Final answer
    x = 238,941.45

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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.