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Finding the Fourth Proportional to 279,592.62, 385,848.74 and 158,745.16

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Solution

The fourth proportional to 279,592.62, 385,848.74 and 158,745.16 is: 219,074.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,592.62 : 385,848.74 = 158,745.16 : x
  2. Step 2: Convert to fraction form
    279,592.62/385,848.74 = 158,745.16/x
  3. Step 3: Cross multiply
    279,592.62x = 385,848.74 × 158,745.16
  4. Step 4: Simplify right side
    279,592.62x = 61,251,619,967.10
  5. Step 5: Solve for x
    x = 61,251,619,967.10/279,592.62
  6. Step 6: Final answer
    x = 219,074.52

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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.