Home / 313,964.12-470,874.72-89,319.44

Finding the Fourth Proportional to 313,964.12, 470,874.72 and 89,319.44

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Solution

The fourth proportional to 313,964.12, 470,874.72 and 89,319.44 is: 133,958.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,964.12 : 470,874.72 = 89,319.44 : x
  2. Step 2: Convert to fraction form
    313,964.12/470,874.72 = 89,319.44/x
  3. Step 3: Cross multiply
    313,964.12x = 470,874.72 × 89,319.44
  4. Step 4: Simplify right side
    313,964.12x = 42,058,266,300.56
  5. Step 5: Solve for x
    x = 42,058,266,300.56/313,964.12
  6. Step 6: Final answer
    x = 133,958.83

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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.