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Finding the Fourth Proportional to 316,562.58, 436,854.87 and 173,321.37

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Solution

The fourth proportional to 316,562.58, 436,854.87 and 173,321.37 is: 239,182.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,562.58 : 436,854.87 = 173,321.37 : x
  2. Step 2: Convert to fraction form
    316,562.58/436,854.87 = 173,321.37/x
  3. Step 3: Cross multiply
    316,562.58x = 436,854.87 × 173,321.37
  4. Step 4: Simplify right side
    316,562.58x = 75,716,284,559.57
  5. Step 5: Solve for x
    x = 75,716,284,559.57/316,562.58
  6. Step 6: Final answer
    x = 239,182.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.