Home / 212,467.86-318,698.91-72,324.18

Finding the Fourth Proportional to 212,467.86, 318,698.91 and 72,324.18

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Solution

The fourth proportional to 212,467.86, 318,698.91 and 72,324.18 is: 108,485.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,467.86 : 318,698.91 = 72,324.18 : x
  2. Step 2: Convert to fraction form
    212,467.86/318,698.91 = 72,324.18/x
  3. Step 3: Cross multiply
    212,467.86x = 318,698.91 × 72,324.18
  4. Step 4: Simplify right side
    212,467.86x = 23,049,637,332.64
  5. Step 5: Solve for x
    x = 23,049,637,332.64/212,467.86
  6. Step 6: Final answer
    x = 108,485.29

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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.