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Finding the Fourth Proportional to 243,690.09, 365,540.15 and 75,210.52

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Solution

The fourth proportional to 243,690.09, 365,540.15 and 75,210.52 is: 112,817.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,690.09 : 365,540.15 = 75,210.52 : x
  2. Step 2: Convert to fraction form
    243,690.09/365,540.15 = 75,210.52/x
  3. Step 3: Cross multiply
    243,690.09x = 365,540.15 × 75,210.52
  4. Step 4: Simplify right side
    243,690.09x = 27,492,463,472.48
  5. Step 5: Solve for x
    x = 27,492,463,472.48/243,690.09
  6. Step 6: Final answer
    x = 112,817.32

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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.