Home / 212,623.40-318,497.70-146,138.60

Finding the Fourth Proportional to 212,623.40, 318,497.70 and 146,138.60

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Solution

The fourth proportional to 212,623.40, 318,497.70 and 146,138.60 is: 218,907.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,623.40 : 318,497.70 = 146,138.60 : x
  2. Step 2: Convert to fraction form
    212,623.40/318,497.70 = 146,138.60/x
  3. Step 3: Cross multiply
    212,623.40x = 318,497.70 × 146,138.60
  4. Step 4: Simplify right side
    212,623.40x = 46,544,807,981.22
  5. Step 5: Solve for x
    x = 46,544,807,981.22/212,623.40
  6. Step 6: Final answer
    x = 218,907.27

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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.