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Finding the Fourth Proportional to 354,425.52, 531,036.48 and 213,888.84

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Solution

The fourth proportional to 354,425.52, 531,036.48 and 213,888.84 is: 320,470.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,425.52 : 531,036.48 = 213,888.84 : x
  2. Step 2: Convert to fraction form
    354,425.52/531,036.48 = 213,888.84/x
  3. Step 3: Cross multiply
    354,425.52x = 531,036.48 × 213,888.84
  4. Step 4: Simplify right side
    354,425.52x = 113,582,776,704.88
  5. Step 5: Solve for x
    x = 113,582,776,704.88/354,425.52
  6. Step 6: Final answer
    x = 320,470.09

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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.