Home / 272,485.51-408,723.54-122,619.76

Finding the Fourth Proportional to 272,485.51, 408,723.54 and 122,619.76

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Solution

The fourth proportional to 272,485.51, 408,723.54 and 122,619.76 is: 183,927.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,485.51 : 408,723.54 = 122,619.76 : x
  2. Step 2: Convert to fraction form
    272,485.51/408,723.54 = 122,619.76/x
  3. Step 3: Cross multiply
    272,485.51x = 408,723.54 × 122,619.76
  4. Step 4: Simplify right side
    272,485.51x = 50,117,582,381.15
  5. Step 5: Solve for x
    x = 50,117,582,381.15/272,485.51
  6. Step 6: Final answer
    x = 183,927.51

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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.