Home / 279,012.48-385,227.34-187,269.32

Finding the Fourth Proportional to 279,012.48, 385,227.34 and 187,269.32

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Solution

The fourth proportional to 279,012.48, 385,227.34 and 187,269.32 is: 258,559.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,012.48 : 385,227.34 = 187,269.32 : x
  2. Step 2: Convert to fraction form
    279,012.48/385,227.34 = 187,269.32/x
  3. Step 3: Cross multiply
    279,012.48x = 385,227.34 × 187,269.32
  4. Step 4: Simplify right side
    279,012.48x = 72,141,262,007.21
  5. Step 5: Solve for x
    x = 72,141,262,007.21/279,012.48
  6. Step 6: Final answer
    x = 258,559.27

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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.