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Finding the Fourth Proportional to 234,854.75, 324,090.10 and 127,420.67

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Solution

The fourth proportional to 234,854.75, 324,090.10 and 127,420.67 is: 175,835.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,854.75 : 324,090.10 = 127,420.67 : x
  2. Step 2: Convert to fraction form
    234,854.75/324,090.10 = 127,420.67/x
  3. Step 3: Cross multiply
    234,854.75x = 324,090.10 × 127,420.67
  4. Step 4: Simplify right side
    234,854.75x = 41,295,777,682.37
  5. Step 5: Solve for x
    x = 41,295,777,682.37/234,854.75
  6. Step 6: Final answer
    x = 175,835.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.