Home / 405,474.36-608,763.12-228,106.20

Finding the Fourth Proportional to 405,474.36, 608,763.12 and 228,106.20

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Solution

The fourth proportional to 405,474.36, 608,763.12 and 228,106.20 is: 342,469.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,474.36 : 608,763.12 = 228,106.20 : x
  2. Step 2: Convert to fraction form
    405,474.36/608,763.12 = 228,106.20/x
  3. Step 3: Cross multiply
    405,474.36x = 608,763.12 × 228,106.20
  4. Step 4: Simplify right side
    405,474.36x = 138,862,642,003.34
  5. Step 5: Solve for x
    x = 138,862,642,003.34/405,474.36
  6. Step 6: Final answer
    x = 342,469.60

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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.