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Finding the Fourth Proportional to 243,825.88, 336,492.78 and 136,389.51

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Solution

The fourth proportional to 243,825.88, 336,492.78 and 136,389.51 is: 188,224.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,825.88 : 336,492.78 = 136,389.51 : x
  2. Step 2: Convert to fraction form
    243,825.88/336,492.78 = 136,389.51/x
  3. Step 3: Cross multiply
    243,825.88x = 336,492.78 × 136,389.51
  4. Step 4: Simplify right side
    243,825.88x = 45,894,085,382.74
  5. Step 5: Solve for x
    x = 45,894,085,382.74/243,825.88
  6. Step 6: Final answer
    x = 188,224.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.