Home / 313,918.92-470,880.20-77,260.01

Finding the Fourth Proportional to 313,918.92, 470,880.20 and 77,260.01

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Solution

The fourth proportional to 313,918.92, 470,880.20 and 77,260.01 is: 115,890.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,918.92 : 470,880.20 = 77,260.01 : x
  2. Step 2: Convert to fraction form
    313,918.92/470,880.20 = 77,260.01/x
  3. Step 3: Cross multiply
    313,918.92x = 470,880.20 × 77,260.01
  4. Step 4: Simplify right side
    313,918.92x = 36,380,206,799.55
  5. Step 5: Solve for x
    x = 36,380,206,799.55/313,918.92
  6. Step 6: Final answer
    x = 115,890.46

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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.