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Finding the Fourth Proportional to 297,030.71, 445,546.75 and 208,678.65

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Solution

The fourth proportional to 297,030.71, 445,546.75 and 208,678.65 is: 313,018.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,030.71 : 445,546.75 = 208,678.65 : x
  2. Step 2: Convert to fraction form
    297,030.71/445,546.75 = 208,678.65/x
  3. Step 3: Cross multiply
    297,030.71x = 445,546.75 × 208,678.65
  4. Step 4: Simplify right side
    297,030.71x = 92,976,093,087.57
  5. Step 5: Solve for x
    x = 92,976,093,087.57/297,030.71
  6. Step 6: Final answer
    x = 313,018.45

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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.