Home / 211,526.35-317,571.12-122,843.50

Finding the Fourth Proportional to 211,526.35, 317,571.12 and 122,843.50

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Solution

The fourth proportional to 211,526.35, 317,571.12 and 122,843.50 is: 184,428.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,526.35 : 317,571.12 = 122,843.50 : x
  2. Step 2: Convert to fraction form
    211,526.35/317,571.12 = 122,843.50/x
  3. Step 3: Cross multiply
    211,526.35x = 317,571.12 × 122,843.50
  4. Step 4: Simplify right side
    211,526.35x = 39,011,547,879.72
  5. Step 5: Solve for x
    x = 39,011,547,879.72/211,526.35
  6. Step 6: Final answer
    x = 184,428.79

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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.