Home / 211,542.20-317,831.70-159,054.20

Finding the Fourth Proportional to 211,542.20, 317,831.70 and 159,054.20

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Solution

The fourth proportional to 211,542.20, 317,831.70 and 159,054.20 is: 238,971.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,542.20 : 317,831.70 = 159,054.20 : x
  2. Step 2: Convert to fraction form
    211,542.20/317,831.70 = 159,054.20/x
  3. Step 3: Cross multiply
    211,542.20x = 317,831.70 × 159,054.20
  4. Step 4: Simplify right side
    211,542.20x = 50,552,466,778.14
  5. Step 5: Solve for x
    x = 50,552,466,778.14/211,542.20
  6. Step 6: Final answer
    x = 238,971.07

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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.