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Finding the Fourth Proportional to 250,782.60, 376,507.80 and 145,677

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Solution

The fourth proportional to 250,782.60, 376,507.80 and 145,677 is: 218,709.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,782.60 : 376,507.80 = 145,677 : x
  2. Step 2: Convert to fraction form
    250,782.60/376,507.80 = 145,677/x
  3. Step 3: Cross multiply
    250,782.60x = 376,507.80 × 145,677
  4. Step 4: Simplify right side
    250,782.60x = 54,848,526,780.60
  5. Step 5: Solve for x
    x = 54,848,526,780.60/250,782.60
  6. Step 6: Final answer
    x = 218,709.46

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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.