Home / 381,845.25-526,957.38-212,090.31

Finding the Fourth Proportional to 381,845.25, 526,957.38 and 212,090.31

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Solution

The fourth proportional to 381,845.25, 526,957.38 and 212,090.31 is: 292,690.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,845.25 : 526,957.38 = 212,090.31 : x
  2. Step 2: Convert to fraction form
    381,845.25/526,957.38 = 212,090.31/x
  3. Step 3: Cross multiply
    381,845.25x = 526,957.38 × 212,090.31
  4. Step 4: Simplify right side
    381,845.25x = 111,762,554,080.99
  5. Step 5: Solve for x
    x = 111,762,554,080.99/381,845.25
  6. Step 6: Final answer
    x = 292,690.70

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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.