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Finding the Fourth Proportional to 395,988.58, 593,982.55 and 143,209.86

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Solution

The fourth proportional to 395,988.58, 593,982.55 and 143,209.86 is: 214,814.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,988.58 : 593,982.55 = 143,209.86 : x
  2. Step 2: Convert to fraction form
    395,988.58/593,982.55 = 143,209.86/x
  3. Step 3: Cross multiply
    395,988.58x = 593,982.55 × 143,209.86
  4. Step 4: Simplify right side
    395,988.58x = 85,064,157,827.94
  5. Step 5: Solve for x
    x = 85,064,157,827.94/395,988.58
  6. Step 6: Final answer
    x = 214,814.67

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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.