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Finding the Fourth Proportional to 268,597.40, 402,458.70 and 197,738.60

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Solution

The fourth proportional to 268,597.40, 402,458.70 and 197,738.60 is: 296,285.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,597.40 : 402,458.70 = 197,738.60 : x
  2. Step 2: Convert to fraction form
    268,597.40/402,458.70 = 197,738.60/x
  3. Step 3: Cross multiply
    268,597.40x = 402,458.70 × 197,738.60
  4. Step 4: Simplify right side
    268,597.40x = 79,581,619,895.82
  5. Step 5: Solve for x
    x = 79,581,619,895.82/268,597.40
  6. Step 6: Final answer
    x = 296,285.89

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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.