Home / 228,258.36-342,320.64-86,001

Finding the Fourth Proportional to 228,258.36, 342,320.64 and 86,001

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Solution

The fourth proportional to 228,258.36, 342,320.64 and 86,001 is: 128,976.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,258.36 : 342,320.64 = 86,001 : x
  2. Step 2: Convert to fraction form
    228,258.36/342,320.64 = 86,001/x
  3. Step 3: Cross multiply
    228,258.36x = 342,320.64 × 86,001
  4. Step 4: Simplify right side
    228,258.36x = 29,439,917,360.64
  5. Step 5: Solve for x
    x = 29,439,917,360.64/228,258.36
  6. Step 6: Final answer
    x = 128,976.29

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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.