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Finding the Fourth Proportional to 297,053.80, 445,470.94 and 128,598.76

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Solution

The fourth proportional to 297,053.80, 445,470.94 and 128,598.76 is: 192,850.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,053.80 : 445,470.94 = 128,598.76 : x
  2. Step 2: Convert to fraction form
    297,053.80/445,470.94 = 128,598.76/x
  3. Step 3: Cross multiply
    297,053.80x = 445,470.94 × 128,598.76
  4. Step 4: Simplify right side
    297,053.80x = 57,287,010,500.03
  5. Step 5: Solve for x
    x = 57,287,010,500.03/297,053.80
  6. Step 6: Final answer
    x = 192,850.62

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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.