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Finding the Fourth Proportional to 297,006.60, 445,509.90 and 276,011.40

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Solution

The fourth proportional to 297,006.60, 445,509.90 and 276,011.40 is: 414,017.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,006.60 : 445,509.90 = 276,011.40 : x
  2. Step 2: Convert to fraction form
    297,006.60/445,509.90 = 276,011.40/x
  3. Step 3: Cross multiply
    297,006.60x = 445,509.90 × 276,011.40
  4. Step 4: Simplify right side
    297,006.60x = 122,965,811,212.86
  5. Step 5: Solve for x
    x = 122,965,811,212.86/297,006.60
  6. Step 6: Final answer
    x = 414,017.10

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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.