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Finding the Fourth Proportional to 243,482.76, 335,984.36 and 136,037.88

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Solution

The fourth proportional to 243,482.76, 335,984.36 and 136,037.88 is: 187,720.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,482.76 : 335,984.36 = 136,037.88 : x
  2. Step 2: Convert to fraction form
    243,482.76/335,984.36 = 136,037.88/x
  3. Step 3: Cross multiply
    243,482.76x = 335,984.36 × 136,037.88
  4. Step 4: Simplify right side
    243,482.76x = 45,706,599,367.37
  5. Step 5: Solve for x
    x = 45,706,599,367.37/243,482.76
  6. Step 6: Final answer
    x = 187,720.06

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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.