Home / 231,567.18-347,169.32-91,430.70

Finding the Fourth Proportional to 231,567.18, 347,169.32 and 91,430.70

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Solution

The fourth proportional to 231,567.18, 347,169.32 and 91,430.70 is: 137,074.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,567.18 : 347,169.32 = 91,430.70 : x
  2. Step 2: Convert to fraction form
    231,567.18/347,169.32 = 91,430.70/x
  3. Step 3: Cross multiply
    231,567.18x = 347,169.32 × 91,430.70
  4. Step 4: Simplify right side
    231,567.18x = 31,741,933,946.12
  5. Step 5: Solve for x
    x = 31,741,933,946.12/231,567.18
  6. Step 6: Final answer
    x = 137,074.41

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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.