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Finding the Fourth Proportional to 288,369.22, 395,059.24 and 277,587.60

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Solution

The fourth proportional to 288,369.22, 395,059.24 and 277,587.60 is: 380,288.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,369.22 : 395,059.24 = 277,587.60 : x
  2. Step 2: Convert to fraction form
    288,369.22/395,059.24 = 277,587.60/x
  3. Step 3: Cross multiply
    288,369.22x = 395,059.24 × 277,587.60
  4. Step 4: Simplify right side
    288,369.22x = 109,663,547,156.89
  5. Step 5: Solve for x
    x = 109,663,547,156.89/288,369.22
  6. Step 6: Final answer
    x = 380,288.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.