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Finding the Fourth Proportional to 297,035.20, 445,552.80 and 86,694.40

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Solution

The fourth proportional to 297,035.20, 445,552.80 and 86,694.40 is: 130,041.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,035.20 : 445,552.80 = 86,694.40 : x
  2. Step 2: Convert to fraction form
    297,035.20/445,552.80 = 86,694.40/x
  3. Step 3: Cross multiply
    297,035.20x = 445,552.80 × 86,694.40
  4. Step 4: Simplify right side
    297,035.20x = 38,626,932,664.32
  5. Step 5: Solve for x
    x = 38,626,932,664.32/297,035.20
  6. Step 6: Final answer
    x = 130,041.60

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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.