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Finding the Fourth Proportional to 347,397.37, 520,734.76 and 134,311.63

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Solution

The fourth proportional to 347,397.37, 520,734.76 and 134,311.63 is: 201,327.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,397.37 : 520,734.76 = 134,311.63 : x
  2. Step 2: Convert to fraction form
    347,397.37/520,734.76 = 134,311.63/x
  3. Step 3: Cross multiply
    347,397.37x = 520,734.76 × 134,311.63
  4. Step 4: Simplify right side
    347,397.37x = 69,940,734,413.26
  5. Step 5: Solve for x
    x = 69,940,734,413.26/347,397.37
  6. Step 6: Final answer
    x = 201,327.76

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1.5x scale

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.