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Finding the Fourth Proportional to 313,343.80, 470,015.70 and 180,633.40

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Solution

The fourth proportional to 313,343.80, 470,015.70 and 180,633.40 is: 270,950.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,343.80 : 470,015.70 = 180,633.40 : x
  2. Step 2: Convert to fraction form
    313,343.80/470,015.70 = 180,633.40/x
  3. Step 3: Cross multiply
    313,343.80x = 470,015.70 × 180,633.40
  4. Step 4: Simplify right side
    313,343.80x = 84,900,533,944.38
  5. Step 5: Solve for x
    x = 84,900,533,944.38/313,343.80
  6. Step 6: Final answer
    x = 270,950.10

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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.