Home / 212,919.40-319,379.10-174,865.60

Finding the Fourth Proportional to 212,919.40, 319,379.10 and 174,865.60

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Solution

The fourth proportional to 212,919.40, 319,379.10 and 174,865.60 is: 262,298.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,919.40 : 319,379.10 = 174,865.60 : x
  2. Step 2: Convert to fraction form
    212,919.40/319,379.10 = 174,865.60/x
  3. Step 3: Cross multiply
    212,919.40x = 319,379.10 × 174,865.60
  4. Step 4: Simplify right side
    212,919.40x = 55,848,417,948.96
  5. Step 5: Solve for x
    x = 55,848,417,948.96/212,919.40
  6. Step 6: Final answer
    x = 262,298.40

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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.