Home / 212,895.40-318,905.70-146,410.60

Finding the Fourth Proportional to 212,895.40, 318,905.70 and 146,410.60

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Solution

The fourth proportional to 212,895.40, 318,905.70 and 146,410.60 is: 219,315.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,895.40 : 318,905.70 = 146,410.60 : x
  2. Step 2: Convert to fraction form
    212,895.40/318,905.70 = 146,410.60/x
  3. Step 3: Cross multiply
    212,895.40x = 318,905.70 × 146,410.60
  4. Step 4: Simplify right side
    212,895.40x = 46,691,174,880.42
  5. Step 5: Solve for x
    x = 46,691,174,880.42/212,895.40
  6. Step 6: Final answer
    x = 219,315.10

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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.