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Finding the Fourth Proportional to 351,534.34, 485,114.60 and 190,385.68

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Solution

The fourth proportional to 351,534.34, 485,114.60 and 190,385.68 is: 262,730.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,534.34 : 485,114.60 = 190,385.68 : x
  2. Step 2: Convert to fraction form
    351,534.34/485,114.60 = 190,385.68/x
  3. Step 3: Cross multiply
    351,534.34x = 485,114.60 × 190,385.68
  4. Step 4: Simplify right side
    351,534.34x = 92,358,872,998.93
  5. Step 5: Solve for x
    x = 92,358,872,998.93/351,534.34
  6. Step 6: Final answer
    x = 262,730.73

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1.5x scale

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.