Home / 213,274.37-319,657.07-99,268.76

Finding the Fourth Proportional to 213,274.37, 319,657.07 and 99,268.76

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Solution

The fourth proportional to 213,274.37, 319,657.07 and 99,268.76 is: 148,784.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,274.37 : 319,657.07 = 99,268.76 : x
  2. Step 2: Convert to fraction form
    213,274.37/319,657.07 = 99,268.76/x
  3. Step 3: Cross multiply
    213,274.37x = 319,657.07 × 99,268.76
  4. Step 4: Simplify right side
    213,274.37x = 31,731,958,869.50
  5. Step 5: Solve for x
    x = 31,731,958,869.50/213,274.37
  6. Step 6: Final answer
    x = 148,784.68

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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.