Home / 279,269.06-385,379.79-151,945.16

Finding the Fourth Proportional to 279,269.06, 385,379.79 and 151,945.16

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Solution

The fourth proportional to 279,269.06, 385,379.79 and 151,945.16 is: 209,678.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,269.06 : 385,379.79 = 151,945.16 : x
  2. Step 2: Convert to fraction form
    279,269.06/385,379.79 = 151,945.16/x
  3. Step 3: Cross multiply
    279,269.06x = 385,379.79 × 151,945.16
  4. Step 4: Simplify right side
    279,269.06x = 58,556,593,852.32
  5. Step 5: Solve for x
    x = 58,556,593,852.32/279,269.06
  6. Step 6: Final answer
    x = 209,678.06

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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.