Home / 212,022.40-316,247.44-197,325.76

Finding the Fourth Proportional to 212,022.40, 316,247.44 and 197,325.76

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Solution

The fourth proportional to 212,022.40, 316,247.44 and 197,325.76 is: 294,326.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,022.40 : 316,247.44 = 197,325.76 : x
  2. Step 2: Convert to fraction form
    212,022.40/316,247.44 = 197,325.76/x
  3. Step 3: Cross multiply
    212,022.40x = 316,247.44 × 197,325.76
  4. Step 4: Simplify right side
    212,022.40x = 62,403,766,446.05
  5. Step 5: Solve for x
    x = 62,403,766,446.05/212,022.40
  6. Step 6: Final answer
    x = 294,326.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.