Home / 212,632.17-318,837.52-100,282.22

Finding the Fourth Proportional to 212,632.17, 318,837.52 and 100,282.22

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Solution

The fourth proportional to 212,632.17, 318,837.52 and 100,282.22 is: 150,371.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,632.17 : 318,837.52 = 100,282.22 : x
  2. Step 2: Convert to fraction form
    212,632.17/318,837.52 = 100,282.22/x
  3. Step 3: Cross multiply
    212,632.17x = 318,837.52 × 100,282.22
  4. Step 4: Simplify right side
    212,632.17x = 31,973,734,981.87
  5. Step 5: Solve for x
    x = 31,973,734,981.87/212,632.17
  6. Step 6: Final answer
    x = 150,371.11

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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.