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Finding the Fourth Proportional to 190,670.33, 285,893.35 and 72,349.98

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Solution

The fourth proportional to 190,670.33, 285,893.35 and 72,349.98 is: 108,482.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,670.33 : 285,893.35 = 72,349.98 : x
  2. Step 2: Convert to fraction form
    190,670.33/285,893.35 = 72,349.98/x
  3. Step 3: Cross multiply
    190,670.33x = 285,893.35 × 72,349.98
  4. Step 4: Simplify right side
    190,670.33x = 20,684,378,154.63
  5. Step 5: Solve for x
    x = 20,684,378,154.63/190,670.33
  6. Step 6: Final answer
    x = 108,482.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.