Home / 354,137.40-531,206.10-228,166.20

Finding the Fourth Proportional to 354,137.40, 531,206.10 and 228,166.20

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Solution

The fourth proportional to 354,137.40, 531,206.10 and 228,166.20 is: 342,249.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,137.40 : 531,206.10 = 228,166.20 : x
  2. Step 2: Convert to fraction form
    354,137.40/531,206.10 = 228,166.20/x
  3. Step 3: Cross multiply
    354,137.40x = 531,206.10 × 228,166.20
  4. Step 4: Simplify right side
    354,137.40x = 121,203,277,253.82
  5. Step 5: Solve for x
    x = 121,203,277,253.82/354,137.40
  6. Step 6: Final answer
    x = 342,249.30

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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.