Home / 317,700.20-475,981.68-212,199.32

Finding the Fourth Proportional to 317,700.20, 475,981.68 and 212,199.32

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Solution

The fourth proportional to 317,700.20, 475,981.68 and 212,199.32 is: 317,919.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,700.20 : 475,981.68 = 212,199.32 : x
  2. Step 2: Convert to fraction form
    317,700.20/475,981.68 = 212,199.32/x
  3. Step 3: Cross multiply
    317,700.20x = 475,981.68 × 212,199.32
  4. Step 4: Simplify right side
    317,700.20x = 101,002,988,828.46
  5. Step 5: Solve for x
    x = 101,002,988,828.46/317,700.20
  6. Step 6: Final answer
    x = 317,919.19

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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.