Home / 212,630.04-318,945.51-199,639.26

Finding the Fourth Proportional to 212,630.04, 318,945.51 and 199,639.26

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Solution

The fourth proportional to 212,630.04, 318,945.51 and 199,639.26 is: 299,459.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,630.04 : 318,945.51 = 199,639.26 : x
  2. Step 2: Convert to fraction form
    212,630.04/318,945.51 = 199,639.26/x
  3. Step 3: Cross multiply
    212,630.04x = 318,945.51 × 199,639.26
  4. Step 4: Simplify right side
    212,630.04x = 63,674,045,596.72
  5. Step 5: Solve for x
    x = 63,674,045,596.72/212,630.04
  6. Step 6: Final answer
    x = 299,459.31

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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.