Home / 305,865.14-421,998.63-176,756.57

Finding the Fourth Proportional to 305,865.14, 421,998.63 and 176,756.57

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Solution

The fourth proportional to 305,865.14, 421,998.63 and 176,756.57 is: 243,869.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,865.14 : 421,998.63 = 176,756.57 : x
  2. Step 2: Convert to fraction form
    305,865.14/421,998.63 = 176,756.57/x
  3. Step 3: Cross multiply
    305,865.14x = 421,998.63 × 176,756.57
  4. Step 4: Simplify right side
    305,865.14x = 74,591,028,273.51
  5. Step 5: Solve for x
    x = 74,591,028,273.51/305,865.14
  6. Step 6: Final answer
    x = 243,869.01

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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.