Home / 279,973.60-386,365.38-152,651.32

Finding the Fourth Proportional to 279,973.60, 386,365.38 and 152,651.32

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Solution

The fourth proportional to 279,973.60, 386,365.38 and 152,651.32 is: 210,659.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,973.60 : 386,365.38 = 152,651.32 : x
  2. Step 2: Convert to fraction form
    279,973.60/386,365.38 = 152,651.32/x
  3. Step 3: Cross multiply
    279,973.60x = 386,365.38 × 152,651.32
  4. Step 4: Simplify right side
    279,973.60x = 58,979,185,259.30
  5. Step 5: Solve for x
    x = 58,979,185,259.30/279,973.60
  6. Step 6: Final answer
    x = 210,659.81

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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.