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Finding the Fourth Proportional to 208,239.44, 312,483.56 and 191,299.76

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Solution

The fourth proportional to 208,239.44, 312,483.56 and 191,299.76 is: 287,063.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,239.44 : 312,483.56 = 191,299.76 : x
  2. Step 2: Convert to fraction form
    208,239.44/312,483.56 = 191,299.76/x
  3. Step 3: Cross multiply
    208,239.44x = 312,483.56 × 191,299.76
  4. Step 4: Simplify right side
    208,239.44x = 59,778,030,031.95
  5. Step 5: Solve for x
    x = 59,778,030,031.95/208,239.44
  6. Step 6: Final answer
    x = 287,063.92

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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.