Home / 289,050.75-398,890.04-161,750.95

Finding the Fourth Proportional to 289,050.75, 398,890.04 and 161,750.95

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Solution

The fourth proportional to 289,050.75, 398,890.04 and 161,750.95 is: 223,216.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,050.75 : 398,890.04 = 161,750.95 : x
  2. Step 2: Convert to fraction form
    289,050.75/398,890.04 = 161,750.95/x
  3. Step 3: Cross multiply
    289,050.75x = 398,890.04 × 161,750.95
  4. Step 4: Simplify right side
    289,050.75x = 64,520,841,109.56
  5. Step 5: Solve for x
    x = 64,520,841,109.56/289,050.75
  6. Step 6: Final answer
    x = 223,216.31

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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.