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Finding the Fourth Proportional to 275,315.40, 380,009.55 and 179,820.06

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Solution

The fourth proportional to 275,315.40, 380,009.55 and 179,820.06 is: 248,200.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,315.40 : 380,009.55 = 179,820.06 : x
  2. Step 2: Convert to fraction form
    275,315.40/380,009.55 = 179,820.06/x
  3. Step 3: Cross multiply
    275,315.40x = 380,009.55 × 179,820.06
  4. Step 4: Simplify right side
    275,315.40x = 68,333,340,081.57
  5. Step 5: Solve for x
    x = 68,333,340,081.57/275,315.40
  6. Step 6: Final answer
    x = 248,200.21

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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.