Home / 279,199.36-385,208.22-158,331.16

Finding the Fourth Proportional to 279,199.36, 385,208.22 and 158,331.16

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Solution

The fourth proportional to 279,199.36, 385,208.22 and 158,331.16 is: 218,447.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,199.36 : 385,208.22 = 158,331.16 : x
  2. Step 2: Convert to fraction form
    279,199.36/385,208.22 = 158,331.16/x
  3. Step 3: Cross multiply
    279,199.36x = 385,208.22 × 158,331.16
  4. Step 4: Simplify right side
    279,199.36x = 60,990,464,314.14
  5. Step 5: Solve for x
    x = 60,990,464,314.14/279,199.36
  6. Step 6: Final answer
    x = 218,447.72

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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.