Home / 279,113.36-385,285.91-197,866.26

Finding the Fourth Proportional to 279,113.36, 385,285.91 and 197,866.26

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Solution

The fourth proportional to 279,113.36, 385,285.91 and 197,866.26 is: 273,133.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,113.36 : 385,285.91 = 197,866.26 : x
  2. Step 2: Convert to fraction form
    279,113.36/385,285.91 = 197,866.26/x
  3. Step 3: Cross multiply
    279,113.36x = 385,285.91 × 197,866.26
  4. Step 4: Simplify right side
    279,113.36x = 76,235,081,053.07
  5. Step 5: Solve for x
    x = 76,235,081,053.07/279,113.36
  6. Step 6: Final answer
    x = 273,133.05

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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.