Home / 268,577.40-402,428.70-197,718.60

Finding the Fourth Proportional to 268,577.40, 402,428.70 and 197,718.60

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Solution

The fourth proportional to 268,577.40, 402,428.70 and 197,718.60 is: 296,255.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,577.40 : 402,428.70 = 197,718.60 : x
  2. Step 2: Convert to fraction form
    268,577.40/402,428.70 = 197,718.60/x
  3. Step 3: Cross multiply
    268,577.40x = 402,428.70 × 197,718.60
  4. Step 4: Simplify right side
    268,577.40x = 79,567,639,163.82
  5. Step 5: Solve for x
    x = 79,567,639,163.82/268,577.40
  6. Step 6: Final answer
    x = 296,255.90

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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.