Home / 211,554.28-317,332.19-53,782.74

Finding the Fourth Proportional to 211,554.28, 317,332.19 and 53,782.74

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Solution

The fourth proportional to 211,554.28, 317,332.19 and 53,782.74 is: 80,674.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,554.28 : 317,332.19 = 53,782.74 : x
  2. Step 2: Convert to fraction form
    211,554.28/317,332.19 = 53,782.74/x
  3. Step 3: Cross multiply
    211,554.28x = 317,332.19 × 53,782.74
  4. Step 4: Simplify right side
    211,554.28x = 17,066,994,668.40
  5. Step 5: Solve for x
    x = 17,066,994,668.40/211,554.28
  6. Step 6: Final answer
    x = 80,674.31

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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.