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Finding the Fourth Proportional to 293,885.60, 440,828.40 and 72,269.60

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Solution

The fourth proportional to 293,885.60, 440,828.40 and 72,269.60 is: 108,404.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,885.60 : 440,828.40 = 72,269.60 : x
  2. Step 2: Convert to fraction form
    293,885.60/440,828.40 = 72,269.60/x
  3. Step 3: Cross multiply
    293,885.60x = 440,828.40 × 72,269.60
  4. Step 4: Simplify right side
    293,885.60x = 31,858,492,136.64
  5. Step 5: Solve for x
    x = 31,858,492,136.64/293,885.60
  6. Step 6: Final answer
    x = 108,404.40

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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.