Home / 223,219.60-308,045.72-121,245.28

Finding the Fourth Proportional to 223,219.60, 308,045.72 and 121,245.28

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Solution

The fourth proportional to 223,219.60, 308,045.72 and 121,245.28 is: 167,319.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,219.60 : 308,045.72 = 121,245.28 : x
  2. Step 2: Convert to fraction form
    223,219.60/308,045.72 = 121,245.28/x
  3. Step 3: Cross multiply
    223,219.60x = 308,045.72 × 121,245.28
  4. Step 4: Simplify right side
    223,219.60x = 37,349,089,574.20
  5. Step 5: Solve for x
    x = 37,349,089,574.20/223,219.60
  6. Step 6: Final answer
    x = 167,319.94

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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.