Home / 236,939.40-354,890.70-143,281.80

Finding the Fourth Proportional to 236,939.40, 354,890.70 and 143,281.80

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Solution

The fourth proportional to 236,939.40, 354,890.70 and 143,281.80 is: 214,609.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,939.40 : 354,890.70 = 143,281.80 : x
  2. Step 2: Convert to fraction form
    236,939.40/354,890.70 = 143,281.80/x
  3. Step 3: Cross multiply
    236,939.40x = 354,890.70 × 143,281.80
  4. Step 4: Simplify right side
    236,939.40x = 50,849,378,299.26
  5. Step 5: Solve for x
    x = 50,849,378,299.26/236,939.40
  6. Step 6: Final answer
    x = 214,609.21

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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.