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Finding the Fourth Proportional to 212,068.20, 318,102.30 and 201,700.20

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Solution

The fourth proportional to 212,068.20, 318,102.30 and 201,700.20 is: 302,550.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,068.20 : 318,102.30 = 201,700.20 : x
  2. Step 2: Convert to fraction form
    212,068.20/318,102.30 = 201,700.20/x
  3. Step 3: Cross multiply
    212,068.20x = 318,102.30 × 201,700.20
  4. Step 4: Simplify right side
    212,068.20x = 64,161,297,530.46
  5. Step 5: Solve for x
    x = 64,161,297,530.46/212,068.20
  6. Step 6: Final answer
    x = 302,550.30

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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.