Home / 266,985.60-400,705.20-109,327.20

Finding the Fourth Proportional to 266,985.60, 400,705.20 and 109,327.20

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Solution

The fourth proportional to 266,985.60, 400,705.20 and 109,327.20 is: 164,083.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,985.60 : 400,705.20 = 109,327.20 : x
  2. Step 2: Convert to fraction form
    266,985.60/400,705.20 = 109,327.20/x
  3. Step 3: Cross multiply
    266,985.60x = 400,705.20 × 109,327.20
  4. Step 4: Simplify right side
    266,985.60x = 43,807,977,541.44
  5. Step 5: Solve for x
    x = 43,807,977,541.44/266,985.60
  6. Step 6: Final answer
    x = 164,083.67

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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.