Home / 231,583.40-347,375.10-156,739.40

Finding the Fourth Proportional to 231,583.40, 347,375.10 and 156,739.40

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Solution

The fourth proportional to 231,583.40, 347,375.10 and 156,739.40 is: 235,109.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,583.40 : 347,375.10 = 156,739.40 : x
  2. Step 2: Convert to fraction form
    231,583.40/347,375.10 = 156,739.40/x
  3. Step 3: Cross multiply
    231,583.40x = 347,375.10 × 156,739.40
  4. Step 4: Simplify right side
    231,583.40x = 54,447,364,748.94
  5. Step 5: Solve for x
    x = 54,447,364,748.94/231,583.40
  6. Step 6: Final answer
    x = 235,109.10

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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.