Home / 223,396.02-308,288.56-121,421.71

Finding the Fourth Proportional to 223,396.02, 308,288.56 and 121,421.71

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Solution

The fourth proportional to 223,396.02, 308,288.56 and 121,421.71 is: 167,563.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,396.02 : 308,288.56 = 121,421.71 : x
  2. Step 2: Convert to fraction form
    223,396.02/308,288.56 = 121,421.71/x
  3. Step 3: Cross multiply
    223,396.02x = 308,288.56 × 121,421.71
  4. Step 4: Simplify right side
    223,396.02x = 37,432,923,054.36
  5. Step 5: Solve for x
    x = 37,432,923,054.36/223,396.02
  6. Step 6: Final answer
    x = 167,563.07

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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.