Home / 316,309.53-474,464.61-129,321.03

Finding the Fourth Proportional to 316,309.53, 474,464.61 and 129,321.03

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Solution

The fourth proportional to 316,309.53, 474,464.61 and 129,321.03 is: 193,981.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,309.53 : 474,464.61 = 129,321.03 : x
  2. Step 2: Convert to fraction form
    316,309.53/474,464.61 = 129,321.03/x
  3. Step 3: Cross multiply
    316,309.53x = 474,464.61 × 129,321.03
  4. Step 4: Simplify right side
    316,309.53x = 61,358,252,063.75
  5. Step 5: Solve for x
    x = 61,358,252,063.75/316,309.53
  6. Step 6: Final answer
    x = 193,981.67

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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.