Home / 212,516.49-318,774.36-145,754.22

Finding the Fourth Proportional to 212,516.49, 318,774.36 and 145,754.22

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Solution

The fourth proportional to 212,516.49, 318,774.36 and 145,754.22 is: 218,631.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,516.49 : 318,774.36 = 145,754.22 : x
  2. Step 2: Convert to fraction form
    212,516.49/318,774.36 = 145,754.22/x
  3. Step 3: Cross multiply
    212,516.49x = 318,774.36 × 145,754.22
  4. Step 4: Simplify right side
    212,516.49x = 46,462,708,197.80
  5. Step 5: Solve for x
    x = 46,462,708,197.80/212,516.49
  6. Step 6: Final answer
    x = 218,631.07

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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.