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Finding the Fourth Proportional to 243,415.64, 335,914.61 and 133,036.51

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Solution

The fourth proportional to 243,415.64, 335,914.61 and 133,036.51 is: 183,590.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,415.64 : 335,914.61 = 133,036.51 : x
  2. Step 2: Convert to fraction form
    243,415.64/335,914.61 = 133,036.51/x
  3. Step 3: Cross multiply
    243,415.64x = 335,914.61 × 133,036.51
  4. Step 4: Simplify right side
    243,415.64x = 44,688,906,497.28
  5. Step 5: Solve for x
    x = 44,688,906,497.28/243,415.64
  6. Step 6: Final answer
    x = 183,590.94

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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.