Home / 209,543.14-289,298.73-144,243.46

Finding the Fourth Proportional to 209,543.14, 289,298.73 and 144,243.46

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Solution

The fourth proportional to 209,543.14, 289,298.73 and 144,243.46 is: 199,144.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,543.14 : 289,298.73 = 144,243.46 : x
  2. Step 2: Convert to fraction form
    209,543.14/289,298.73 = 144,243.46/x
  3. Step 3: Cross multiply
    209,543.14x = 289,298.73 × 144,243.46
  4. Step 4: Simplify right side
    209,543.14x = 41,729,449,788.81
  5. Step 5: Solve for x
    x = 41,729,449,788.81/209,543.14
  6. Step 6: Final answer
    x = 199,144.91

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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.