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Finding the Fourth Proportional to 297,202.64, 445,870.20 and 139,346.96

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Solution

The fourth proportional to 297,202.64, 445,870.20 and 139,346.96 is: 209,051.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,202.64 : 445,870.20 = 139,346.96 : x
  2. Step 2: Convert to fraction form
    297,202.64/445,870.20 = 139,346.96/x
  3. Step 3: Cross multiply
    297,202.64x = 445,870.20 × 139,346.96
  4. Step 4: Simplify right side
    297,202.64x = 62,130,656,924.59
  5. Step 5: Solve for x
    x = 62,130,656,924.59/297,202.64
  6. Step 6: Final answer
    x = 209,051.50

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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.