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Finding the Fourth Proportional to 343,380.40, 514,924.80 and 165,941.80

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Solution

The fourth proportional to 343,380.40, 514,924.80 and 165,941.80 is: 248,842.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,380.40 : 514,924.80 = 165,941.80 : x
  2. Step 2: Convert to fraction form
    343,380.40/514,924.80 = 165,941.80/x
  3. Step 3: Cross multiply
    343,380.40x = 514,924.80 × 165,941.80
  4. Step 4: Simplify right side
    343,380.40x = 85,447,548,176.64
  5. Step 5: Solve for x
    x = 85,447,548,176.64/343,380.40
  6. Step 6: Final answer
    x = 248,842.24

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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.