Home / 389,837.96-537,980.87-228,695.75

Finding the Fourth Proportional to 389,837.96, 537,980.87 and 228,695.75

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Solution

The fourth proportional to 389,837.96, 537,980.87 and 228,695.75 is: 315,602.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,837.96 : 537,980.87 = 228,695.75 : x
  2. Step 2: Convert to fraction form
    389,837.96/537,980.87 = 228,695.75/x
  3. Step 3: Cross multiply
    389,837.96x = 537,980.87 × 228,695.75
  4. Step 4: Simplify right side
    389,837.96x = 123,033,938,550.30
  5. Step 5: Solve for x
    x = 123,033,938,550.30/389,837.96
  6. Step 6: Final answer
    x = 315,602.77

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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.