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Finding the Fourth Proportional to 405,270.58, 607,906.14 and 105,750.40

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Solution

The fourth proportional to 405,270.58, 607,906.14 and 105,750.40 is: 158,625.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,270.58 : 607,906.14 = 105,750.40 : x
  2. Step 2: Convert to fraction form
    405,270.58/607,906.14 = 105,750.40/x
  3. Step 3: Cross multiply
    405,270.58x = 607,906.14 × 105,750.40
  4. Step 4: Simplify right side
    405,270.58x = 64,286,317,467.46
  5. Step 5: Solve for x
    x = 64,286,317,467.46/405,270.58
  6. Step 6: Final answer
    x = 158,625.67

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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.