Home / 389,301.08-537,133.82-228,069.45

Finding the Fourth Proportional to 389,301.08, 537,133.82 and 228,069.45

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Solution

The fourth proportional to 389,301.08, 537,133.82 and 228,069.45 is: 314,676.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,301.08 : 537,133.82 = 228,069.45 : x
  2. Step 2: Convert to fraction form
    389,301.08/537,133.82 = 228,069.45/x
  3. Step 3: Cross multiply
    389,301.08x = 537,133.82 × 228,069.45
  4. Step 4: Simplify right side
    389,301.08x = 122,503,813,763.45
  5. Step 5: Solve for x
    x = 122,503,813,763.45/389,301.08
  6. Step 6: Final answer
    x = 314,676.28

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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.