Home / 211,571.32-317,358.06-71,331.16

Finding the Fourth Proportional to 211,571.32, 317,358.06 and 71,331.16

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Solution

The fourth proportional to 211,571.32, 317,358.06 and 71,331.16 is: 106,997.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,571.32 : 317,358.06 = 71,331.16 : x
  2. Step 2: Convert to fraction form
    211,571.32/317,358.06 = 71,331.16/x
  3. Step 3: Cross multiply
    211,571.32x = 317,358.06 × 71,331.16
  4. Step 4: Simplify right side
    211,571.32x = 22,637,518,555.15
  5. Step 5: Solve for x
    x = 22,637,518,555.15/211,571.32
  6. Step 6: Final answer
    x = 106,997.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.