Home / 246,528.20-369,500.70-128,138.60

Finding the Fourth Proportional to 246,528.20, 369,500.70 and 128,138.60

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Solution

The fourth proportional to 246,528.20, 369,500.70 and 128,138.60 is: 192,056.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,528.20 : 369,500.70 = 128,138.60 : x
  2. Step 2: Convert to fraction form
    246,528.20/369,500.70 = 128,138.60/x
  3. Step 3: Cross multiply
    246,528.20x = 369,500.70 × 128,138.60
  4. Step 4: Simplify right side
    246,528.20x = 47,347,302,397.02
  5. Step 5: Solve for x
    x = 47,347,302,397.02/246,528.20
  6. Step 6: Final answer
    x = 192,056.33

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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.