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Finding the Fourth Proportional to 190,374.78, 285,488.35 and 101,579.85

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Solution

The fourth proportional to 190,374.78, 285,488.35 and 101,579.85 is: 152,330.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,374.78 : 285,488.35 = 101,579.85 : x
  2. Step 2: Convert to fraction form
    190,374.78/285,488.35 = 101,579.85/x
  3. Step 3: Cross multiply
    190,374.78x = 285,488.35 × 101,579.85
  4. Step 4: Simplify right side
    190,374.78x = 28,999,861,834.41
  5. Step 5: Solve for x
    x = 28,999,861,834.41/190,374.78
  6. Step 6: Final answer
    x = 152,330.38

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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.