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Finding the Fourth Proportional to 243,619.77, 365,492.70 and 75,136.38

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Solution

The fourth proportional to 243,619.77, 365,492.70 and 75,136.38 is: 112,724.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,619.77 : 365,492.70 = 75,136.38 : x
  2. Step 2: Convert to fraction form
    243,619.77/365,492.70 = 75,136.38/x
  3. Step 3: Cross multiply
    243,619.77x = 365,492.70 × 75,136.38
  4. Step 4: Simplify right side
    243,619.77x = 27,461,798,394.43
  5. Step 5: Solve for x
    x = 27,461,798,394.43/243,619.77
  6. Step 6: Final answer
    x = 112,724.01

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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.