Home / 211,944.80-317,719.56-71,605.28

Finding the Fourth Proportional to 211,944.80, 317,719.56 and 71,605.28

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Solution

The fourth proportional to 211,944.80, 317,719.56 and 71,605.28 is: 107,341.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,944.80 : 317,719.56 = 71,605.28 : x
  2. Step 2: Convert to fraction form
    211,944.80/317,719.56 = 71,605.28/x
  3. Step 3: Cross multiply
    211,944.80x = 317,719.56 × 71,605.28
  4. Step 4: Simplify right side
    211,944.80x = 22,750,398,055.28
  5. Step 5: Solve for x
    x = 22,750,398,055.28/211,944.80
  6. Step 6: Final answer
    x = 107,341.15

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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.