Home / 420,903.22-581,037.67-268,150.89

Finding the Fourth Proportional to 420,903.22, 581,037.67 and 268,150.89

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Solution

The fourth proportional to 420,903.22, 581,037.67 and 268,150.89 is: 370,170.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,903.22 : 581,037.67 = 268,150.89 : x
  2. Step 2: Convert to fraction form
    420,903.22/581,037.67 = 268,150.89/x
  3. Step 3: Cross multiply
    420,903.22x = 581,037.67 × 268,150.89
  4. Step 4: Simplify right side
    420,903.22x = 155,805,768,334.03
  5. Step 5: Solve for x
    x = 155,805,768,334.03/420,903.22
  6. Step 6: Final answer
    x = 370,170.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.