Home / 211,533.07-317,300.70-71,292.91

Finding the Fourth Proportional to 211,533.07, 317,300.70 and 71,292.91

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Solution

The fourth proportional to 211,533.07, 317,300.70 and 71,292.91 is: 106,939.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,533.07 : 317,300.70 = 71,292.91 : x
  2. Step 2: Convert to fraction form
    211,533.07/317,300.70 = 71,292.91/x
  3. Step 3: Cross multiply
    211,533.07x = 317,300.70 × 71,292.91
  4. Step 4: Simplify right side
    211,533.07x = 22,621,290,248.04
  5. Step 5: Solve for x
    x = 22,621,290,248.04/211,533.07
  6. Step 6: Final answer
    x = 106,939.73

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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.