Home / 275,621.54-380,262.80-154,746.05

Finding the Fourth Proportional to 275,621.54, 380,262.80 and 154,746.05

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Solution

The fourth proportional to 275,621.54, 380,262.80 and 154,746.05 is: 213,496.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,621.54 : 380,262.80 = 154,746.05 : x
  2. Step 2: Convert to fraction form
    275,621.54/380,262.80 = 154,746.05/x
  3. Step 3: Cross multiply
    275,621.54x = 380,262.80 × 154,746.05
  4. Step 4: Simplify right side
    275,621.54x = 58,844,164,747.49
  5. Step 5: Solve for x
    x = 58,844,164,747.49/275,621.54
  6. Step 6: Final answer
    x = 213,496.25

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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.