Home / 354,911.60-531,881.40-228,162.80

Finding the Fourth Proportional to 354,911.60, 531,881.40 and 228,162.80

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Solution

The fourth proportional to 354,911.60, 531,881.40 and 228,162.80 is: 341,931.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,911.60 : 531,881.40 = 228,162.80 : x
  2. Step 2: Convert to fraction form
    354,911.60/531,881.40 = 228,162.80/x
  3. Step 3: Cross multiply
    354,911.60x = 531,881.40 × 228,162.80
  4. Step 4: Simplify right side
    354,911.60x = 121,355,549,491.92
  5. Step 5: Solve for x
    x = 121,355,549,491.92/354,911.60
  6. Step 6: Final answer
    x = 341,931.76

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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.