Home / 638,576.42-957,938.74-212,150.30

Finding the Fourth Proportional to 638,576.42, 957,938.74 and 212,150.30

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Solution

The fourth proportional to 638,576.42, 957,938.74 and 212,150.30 is: 318,250.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,576.42 : 957,938.74 = 212,150.30 : x
  2. Step 2: Convert to fraction form
    638,576.42/957,938.74 = 212,150.30/x
  3. Step 3: Cross multiply
    638,576.42x = 957,938.74 × 212,150.30
  4. Step 4: Simplify right side
    638,576.42x = 203,226,985,752.55
  5. Step 5: Solve for x
    x = 203,226,985,752.55/638,576.42
  6. Step 6: Final answer
    x = 318,250.07

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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.