Home / 280,110.60-419,874.30-153,556.20

Finding the Fourth Proportional to 280,110.60, 419,874.30 and 153,556.20

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Solution

The fourth proportional to 280,110.60, 419,874.30 and 153,556.20 is: 230,174.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,110.60 : 419,874.30 = 153,556.20 : x
  2. Step 2: Convert to fraction form
    280,110.60/419,874.30 = 153,556.20/x
  3. Step 3: Cross multiply
    280,110.60x = 419,874.30 × 153,556.20
  4. Step 4: Simplify right side
    280,110.60x = 64,474,301,985.66
  5. Step 5: Solve for x
    x = 64,474,301,985.66/280,110.60
  6. Step 6: Final answer
    x = 230,174.45

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1.5x scale

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.