Home / 228,935.64-315,997.08-138,277.20

Finding the Fourth Proportional to 228,935.64, 315,997.08 and 138,277.20

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Solution

The fourth proportional to 228,935.64, 315,997.08 and 138,277.20 is: 190,862.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,935.64 : 315,997.08 = 138,277.20 : x
  2. Step 2: Convert to fraction form
    228,935.64/315,997.08 = 138,277.20/x
  3. Step 3: Cross multiply
    228,935.64x = 315,997.08 × 138,277.20
  4. Step 4: Simplify right side
    228,935.64x = 43,695,191,430.58
  5. Step 5: Solve for x
    x = 43,695,191,430.58/228,935.64
  6. Step 6: Final answer
    x = 190,862.34

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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.