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Finding the Fourth Proportional to 243,054.94, 335,415.84 and 134,159.31

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Solution

The fourth proportional to 243,054.94, 335,415.84 and 134,159.31 is: 185,139.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,054.94 : 335,415.84 = 134,159.31 : x
  2. Step 2: Convert to fraction form
    243,054.94/335,415.84 = 134,159.31/x
  3. Step 3: Cross multiply
    243,054.94x = 335,415.84 × 134,159.31
  4. Step 4: Simplify right side
    243,054.94x = 44,999,157,752.79
  5. Step 5: Solve for x
    x = 44,999,157,752.79/243,054.94
  6. Step 6: Final answer
    x = 185,139.86

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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.