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Finding the Fourth Proportional to 323,409.60, 485,114.40 and 101,764.80

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Solution

The fourth proportional to 323,409.60, 485,114.40 and 101,764.80 is: 152,647.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,409.60 : 485,114.40 = 101,764.80 : x
  2. Step 2: Convert to fraction form
    323,409.60/485,114.40 = 101,764.80/x
  3. Step 3: Cross multiply
    323,409.60x = 485,114.40 × 101,764.80
  4. Step 4: Simplify right side
    323,409.60x = 49,367,569,893.12
  5. Step 5: Solve for x
    x = 49,367,569,893.12/323,409.60
  6. Step 6: Final answer
    x = 152,647.20

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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.