Home / 316,431.41-474,975.26-211,980.29

Finding the Fourth Proportional to 316,431.41, 474,975.26 and 211,980.29

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Solution

The fourth proportional to 316,431.41, 474,975.26 and 211,980.29 is: 318,190.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,431.41 : 474,975.26 = 211,980.29 : x
  2. Step 2: Convert to fraction form
    316,431.41/474,975.26 = 211,980.29/x
  3. Step 3: Cross multiply
    316,431.41x = 474,975.26 × 211,980.29
  4. Step 4: Simplify right side
    316,431.41x = 100,685,392,700.14
  5. Step 5: Solve for x
    x = 100,685,392,700.14/316,431.41
  6. Step 6: Final answer
    x = 318,190.26

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1.5x scale

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.