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Finding the Fourth Proportional to 243,887.77, 365,838.13 and 66,398.41

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Solution

The fourth proportional to 243,887.77, 365,838.13 and 66,398.41 is: 99,599.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,887.77 : 365,838.13 = 66,398.41 : x
  2. Step 2: Convert to fraction form
    243,887.77/365,838.13 = 66,398.41/x
  3. Step 3: Cross multiply
    243,887.77x = 365,838.13 × 66,398.41
  4. Step 4: Simplify right side
    243,887.77x = 24,291,068,320.18
  5. Step 5: Solve for x
    x = 24,291,068,320.18/243,887.77
  6. Step 6: Final answer
    x = 99,599.37

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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.