Home / 389,278.32-537,204.44-228,101.28

Finding the Fourth Proportional to 389,278.32, 537,204.44 and 228,101.28

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Solution

The fourth proportional to 389,278.32, 537,204.44 and 228,101.28 is: 314,779.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,278.32 : 537,204.44 = 228,101.28 : x
  2. Step 2: Convert to fraction form
    389,278.32/537,204.44 = 228,101.28/x
  3. Step 3: Cross multiply
    389,278.32x = 537,204.44 × 228,101.28
  4. Step 4: Simplify right side
    389,278.32x = 122,537,020,385.68
  5. Step 5: Solve for x
    x = 122,537,020,385.68/389,278.32
  6. Step 6: Final answer
    x = 314,779.98

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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.