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Finding the Fourth Proportional to 270,507.18, 405,872.55 and 118,625.67

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Solution

The fourth proportional to 270,507.18, 405,872.55 and 118,625.67 is: 177,987.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,507.18 : 405,872.55 = 118,625.67 : x
  2. Step 2: Convert to fraction form
    270,507.18/405,872.55 = 118,625.67/x
  3. Step 3: Cross multiply
    270,507.18x = 405,872.55 × 118,625.67
  4. Step 4: Simplify right side
    270,507.18x = 48,146,900,555.87
  5. Step 5: Solve for x
    x = 48,146,900,555.87/270,507.18
  6. Step 6: Final answer
    x = 177,987.52

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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.