Home / 389,256.82-537,187.75-225,900.74

Finding the Fourth Proportional to 389,256.82, 537,187.75 and 225,900.74

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Solution

The fourth proportional to 389,256.82, 537,187.75 and 225,900.74 is: 311,750.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,256.82 : 537,187.75 = 225,900.74 : x
  2. Step 2: Convert to fraction form
    389,256.82/537,187.75 = 225,900.74/x
  3. Step 3: Cross multiply
    389,256.82x = 537,187.75 × 225,900.74
  4. Step 4: Simplify right side
    389,256.82x = 121,351,111,022.15
  5. Step 5: Solve for x
    x = 121,351,111,022.15/389,256.82
  6. Step 6: Final answer
    x = 311,750.77

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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.