Home / 211,739.51-317,328.91-155,315.42

Finding the Fourth Proportional to 211,739.51, 317,328.91 and 155,315.42

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Solution

The fourth proportional to 211,739.51, 317,328.91 and 155,315.42 is: 232,767.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,739.51 : 317,328.91 = 155,315.42 : x
  2. Step 2: Convert to fraction form
    211,739.51/317,328.91 = 155,315.42/x
  3. Step 3: Cross multiply
    211,739.51x = 317,328.91 × 155,315.42
  4. Step 4: Simplify right side
    211,739.51x = 49,286,072,149.84
  5. Step 5: Solve for x
    x = 49,286,072,149.84/211,739.51
  6. Step 6: Final answer
    x = 232,767.48

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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.