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Finding the Fourth Proportional to 297,110.87, 445,740.02 and 147,421.79

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Solution

The fourth proportional to 297,110.87, 445,740.02 and 147,421.79 is: 221,169.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,110.87 : 445,740.02 = 147,421.79 : x
  2. Step 2: Convert to fraction form
    297,110.87/445,740.02 = 147,421.79/x
  3. Step 3: Cross multiply
    297,110.87x = 445,740.02 × 147,421.79
  4. Step 4: Simplify right side
    297,110.87x = 65,711,788,657.23
  5. Step 5: Solve for x
    x = 65,711,788,657.23/297,110.87
  6. Step 6: Final answer
    x = 221,169.25

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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.