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Finding the Fourth Proportional to 297,200.14, 445,866.45 and 139,344.46

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Solution

The fourth proportional to 297,200.14, 445,866.45 and 139,344.46 is: 209,047.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,200.14 : 445,866.45 = 139,344.46 : x
  2. Step 2: Convert to fraction form
    297,200.14/445,866.45 = 139,344.46/x
  3. Step 3: Cross multiply
    297,200.14x = 445,866.45 × 139,344.46
  4. Step 4: Simplify right side
    297,200.14x = 62,129,019,707.37
  5. Step 5: Solve for x
    x = 62,129,019,707.37/297,200.14
  6. Step 6: Final answer
    x = 209,047.75

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1.5x scale

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.