Home / 388,027.44-535,466.79-215,942.67

Finding the Fourth Proportional to 388,027.44, 535,466.79 and 215,942.67

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Solution

The fourth proportional to 388,027.44, 535,466.79 and 215,942.67 is: 297,994.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,027.44 : 535,466.79 = 215,942.67 : x
  2. Step 2: Convert to fraction form
    388,027.44/535,466.79 = 215,942.67/x
  3. Step 3: Cross multiply
    388,027.44x = 535,466.79 × 215,942.67
  4. Step 4: Simplify right side
    388,027.44x = 115,630,128,328.93
  5. Step 5: Solve for x
    x = 115,630,128,328.93/388,027.44
  6. Step 6: Final answer
    x = 297,994.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.