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Finding the Fourth Proportional to 297,605.71, 446,028.95 and 139,485.79

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Solution

The fourth proportional to 297,605.71, 446,028.95 and 139,485.79 is: 209,050.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,605.71 : 446,028.95 = 139,485.79 : x
  2. Step 2: Convert to fraction form
    297,605.71/446,028.95 = 139,485.79/x
  3. Step 3: Cross multiply
    297,605.71x = 446,028.95 × 139,485.79
  4. Step 4: Simplify right side
    297,605.71x = 62,214,699,756.19
  5. Step 5: Solve for x
    x = 62,214,699,756.19/297,605.71
  6. Step 6: Final answer
    x = 209,050.76

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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.