Home / 313,621.80-470,238.30-180,436.20

Finding the Fourth Proportional to 313,621.80, 470,238.30 and 180,436.20

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Solution

The fourth proportional to 313,621.80, 470,238.30 and 180,436.20 is: 270,542.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,621.80 : 470,238.30 = 180,436.20 : x
  2. Step 2: Convert to fraction form
    313,621.80/470,238.30 = 180,436.20/x
  3. Step 3: Cross multiply
    313,621.80x = 470,238.30 × 180,436.20
  4. Step 4: Simplify right side
    313,621.80x = 84,848,011,946.46
  5. Step 5: Solve for x
    x = 84,848,011,946.46/313,621.80
  6. Step 6: Final answer
    x = 270,542.46

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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.