Home / 212,639.60-318,631.35-184,427.30

Finding the Fourth Proportional to 212,639.60, 318,631.35 and 184,427.30

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Solution

The fourth proportional to 212,639.60, 318,631.35 and 184,427.30 is: 276,356.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,639.60 : 318,631.35 = 184,427.30 : x
  2. Step 2: Convert to fraction form
    212,639.60/318,631.35 = 184,427.30/x
  3. Step 3: Cross multiply
    212,639.60x = 318,631.35 × 184,427.30
  4. Step 4: Simplify right side
    212,639.60x = 58,764,319,575.86
  5. Step 5: Solve for x
    x = 58,764,319,575.86/212,639.60
  6. Step 6: Final answer
    x = 276,356.42

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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.