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Finding the Fourth Proportional to 347,148.60, 520,722.90 and 97,830.60

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Solution

The fourth proportional to 347,148.60, 520,722.90 and 97,830.60 is: 146,745.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,148.60 : 520,722.90 = 97,830.60 : x
  2. Step 2: Convert to fraction form
    347,148.60/520,722.90 = 97,830.60/x
  3. Step 3: Cross multiply
    347,148.60x = 520,722.90 × 97,830.60
  4. Step 4: Simplify right side
    347,148.60x = 50,942,633,740.74
  5. Step 5: Solve for x
    x = 50,942,633,740.74/347,148.60
  6. Step 6: Final answer
    x = 146,745.90

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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.