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Finding the Fourth Proportional to 297,174.76, 445,758.63 and 139,291.72

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Solution

The fourth proportional to 297,174.76, 445,758.63 and 139,291.72 is: 208,935.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,174.76 : 445,758.63 = 139,291.72 : x
  2. Step 2: Convert to fraction form
    297,174.76/445,758.63 = 139,291.72/x
  3. Step 3: Cross multiply
    297,174.76x = 445,758.63 × 139,291.72
  4. Step 4: Simplify right side
    297,174.76x = 62,090,486,277.54
  5. Step 5: Solve for x
    x = 62,090,486,277.54/297,174.76
  6. Step 6: Final answer
    x = 208,935.93

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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.