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Finding the Fourth Proportional to 297,258.62, 446,033.72 and 139,499.90

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Solution

The fourth proportional to 297,258.62, 446,033.72 and 139,499.90 is: 209,318.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,258.62 : 446,033.72 = 139,499.90 : x
  2. Step 2: Convert to fraction form
    297,258.62/446,033.72 = 139,499.90/x
  3. Step 3: Cross multiply
    297,258.62x = 446,033.72 × 139,499.90
  4. Step 4: Simplify right side
    297,258.62x = 62,221,657,455.21
  5. Step 5: Solve for x
    x = 62,221,657,455.21/297,258.62
  6. Step 6: Final answer
    x = 209,318.26

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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.