Home / 218,485.02-301,515.03-122,995.20

Finding the Fourth Proportional to 218,485.02, 301,515.03 and 122,995.20

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Solution

The fourth proportional to 218,485.02, 301,515.03 and 122,995.20 is: 169,736.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,485.02 : 301,515.03 = 122,995.20 : x
  2. Step 2: Convert to fraction form
    218,485.02/301,515.03 = 122,995.20/x
  3. Step 3: Cross multiply
    218,485.02x = 301,515.03 × 122,995.20
  4. Step 4: Simplify right side
    218,485.02x = 37,084,901,417.86
  5. Step 5: Solve for x
    x = 37,084,901,417.86/218,485.02
  6. Step 6: Final answer
    x = 169,736.59

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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.