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Finding the Fourth Proportional to 298,295.72, 411,649.46 and 170,978.76

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Solution

The fourth proportional to 298,295.72, 411,649.46 and 170,978.76 is: 235,951.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,295.72 : 411,649.46 = 170,978.76 : x
  2. Step 2: Convert to fraction form
    298,295.72/411,649.46 = 170,978.76/x
  3. Step 3: Cross multiply
    298,295.72x = 411,649.46 × 170,978.76
  4. Step 4: Simplify right side
    298,295.72x = 70,383,314,225.47
  5. Step 5: Solve for x
    x = 70,383,314,225.47/298,295.72
  6. Step 6: Final answer
    x = 235,951.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.