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Finding the Fourth Proportional to 297,335.63, 445,999.45 and 72,698.00

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Solution

The fourth proportional to 297,335.63, 445,999.45 and 72,698.00 is: 109,046.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,335.63 : 445,999.45 = 72,698.00 : x
  2. Step 2: Convert to fraction form
    297,335.63/445,999.45 = 72,698.00/x
  3. Step 3: Cross multiply
    297,335.63x = 445,999.45 × 72,698.00
  4. Step 4: Simplify right side
    297,335.63x = 32,423,265,604.36
  5. Step 5: Solve for x
    x = 32,423,265,604.36/297,335.63
  6. Step 6: Final answer
    x = 109,046.01

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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.