Home / 313,828.30-470,742.46-103,438.90

Finding the Fourth Proportional to 313,828.30, 470,742.46 and 103,438.90

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Solution

The fourth proportional to 313,828.30, 470,742.46 and 103,438.90 is: 155,158.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,828.30 : 470,742.46 = 103,438.90 : x
  2. Step 2: Convert to fraction form
    313,828.30/470,742.46 = 103,438.90/x
  3. Step 3: Cross multiply
    313,828.30x = 470,742.46 × 103,438.90
  4. Step 4: Simplify right side
    313,828.30x = 48,693,082,245.69
  5. Step 5: Solve for x
    x = 48,693,082,245.69/313,828.30
  6. Step 6: Final answer
    x = 155,158.35

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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.