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Finding the Fourth Proportional to 279,592.40, 385,848.44 and 158,744.93

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Solution

The fourth proportional to 279,592.40, 385,848.44 and 158,744.93 is: 219,074.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,592.40 : 385,848.44 = 158,744.93 : x
  2. Step 2: Convert to fraction form
    279,592.40/385,848.44 = 158,744.93/x
  3. Step 3: Cross multiply
    279,592.40x = 385,848.44 × 158,744.93
  4. Step 4: Simplify right side
    279,592.40x = 61,251,482,322.37
  5. Step 5: Solve for x
    x = 61,251,482,322.37/279,592.40
  6. Step 6: Final answer
    x = 219,074.20

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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.