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Finding the Fourth Proportional to 340,960.85, 470,727.57 and 303,130.41

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Solution

The fourth proportional to 340,960.85, 470,727.57 and 303,130.41 is: 418,499.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,960.85 : 470,727.57 = 303,130.41 : x
  2. Step 2: Convert to fraction form
    340,960.85/470,727.57 = 303,130.41/x
  3. Step 3: Cross multiply
    340,960.85x = 470,727.57 × 303,130.41
  4. Step 4: Simplify right side
    340,960.85x = 142,691,838,958.81
  5. Step 5: Solve for x
    x = 142,691,838,958.81/340,960.85
  6. Step 6: Final answer
    x = 418,499.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.