Home / 231,739.80-347,868.90-216,511.80

Finding the Fourth Proportional to 231,739.80, 347,868.90 and 216,511.80

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Solution

The fourth proportional to 231,739.80, 347,868.90 and 216,511.80 is: 325,009.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,739.80 : 347,868.90 = 216,511.80 : x
  2. Step 2: Convert to fraction form
    231,739.80/347,868.90 = 216,511.80/x
  3. Step 3: Cross multiply
    231,739.80x = 347,868.90 × 216,511.80
  4. Step 4: Simplify right side
    231,739.80x = 75,317,721,703.02
  5. Step 5: Solve for x
    x = 75,317,721,703.02/231,739.80
  6. Step 6: Final answer
    x = 325,009.87

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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.