Home / 231,815.60-347,723.40-208,487.60

Finding the Fourth Proportional to 231,815.60, 347,723.40 and 208,487.60

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Solution

The fourth proportional to 231,815.60, 347,723.40 and 208,487.60 is: 312,731.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,815.60 : 347,723.40 = 208,487.60 : x
  2. Step 2: Convert to fraction form
    231,815.60/347,723.40 = 208,487.60/x
  3. Step 3: Cross multiply
    231,815.60x = 347,723.40 × 208,487.60
  4. Step 4: Simplify right side
    231,815.60x = 72,496,017,129.84
  5. Step 5: Solve for x
    x = 72,496,017,129.84/231,815.60
  6. Step 6: Final answer
    x = 312,731.40

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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.