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Finding the Fourth Proportional to 296,952.40, 445,428.60 and 72,311.05

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Solution

The fourth proportional to 296,952.40, 445,428.60 and 72,311.05 is: 108,466.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,952.40 : 445,428.60 = 72,311.05 : x
  2. Step 2: Convert to fraction form
    296,952.40/445,428.60 = 72,311.05/x
  3. Step 3: Cross multiply
    296,952.40x = 445,428.60 × 72,311.05
  4. Step 4: Simplify right side
    296,952.40x = 32,209,409,766.03
  5. Step 5: Solve for x
    x = 32,209,409,766.03/296,952.40
  6. Step 6: Final answer
    x = 108,466.58

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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.