Home / 354,829.60-531,466.80-188,423.20

Finding the Fourth Proportional to 354,829.60, 531,466.80 and 188,423.20

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Solution

The fourth proportional to 354,829.60, 531,466.80 and 188,423.20 is: 282,221.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,829.60 : 531,466.80 = 188,423.20 : x
  2. Step 2: Convert to fraction form
    354,829.60/531,466.80 = 188,423.20/x
  3. Step 3: Cross multiply
    354,829.60x = 531,466.80 × 188,423.20
  4. Step 4: Simplify right side
    354,829.60x = 100,140,675,149.76
  5. Step 5: Solve for x
    x = 100,140,675,149.76/354,829.60
  6. Step 6: Final answer
    x = 282,221.88

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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.