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Finding the Fourth Proportional to 314,163.60, 470,208.60 and 243,661.20

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Solution

The fourth proportional to 314,163.60, 470,208.60 and 243,661.20 is: 364,687.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,163.60 : 470,208.60 = 243,661.20 : x
  2. Step 2: Convert to fraction form
    314,163.60/470,208.60 = 243,661.20/x
  3. Step 3: Cross multiply
    314,163.60x = 470,208.60 × 243,661.20
  4. Step 4: Simplify right side
    314,163.60x = 114,571,591,726.32
  5. Step 5: Solve for x
    x = 114,571,591,726.32/314,163.60
  6. Step 6: Final answer
    x = 364,687.67

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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.