Home / 211,015.08-291,112.92-154,328.04

Finding the Fourth Proportional to 211,015.08, 291,112.92 and 154,328.04

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Solution

The fourth proportional to 211,015.08, 291,112.92 and 154,328.04 is: 212,908.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,015.08 : 291,112.92 = 154,328.04 : x
  2. Step 2: Convert to fraction form
    211,015.08/291,112.92 = 154,328.04/x
  3. Step 3: Cross multiply
    211,015.08x = 291,112.92 × 154,328.04
  4. Step 4: Simplify right side
    211,015.08x = 44,926,886,362.28
  5. Step 5: Solve for x
    x = 44,926,886,362.28/211,015.08
  6. Step 6: Final answer
    x = 212,908.42

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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.