Home / 389,840.15-537,983.90-228,697.94

Finding the Fourth Proportional to 389,840.15, 537,983.90 and 228,697.94

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Solution

The fourth proportional to 389,840.15, 537,983.90 and 228,697.94 is: 315,605.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,840.15 : 537,983.90 = 228,697.94 : x
  2. Step 2: Convert to fraction form
    389,840.15/537,983.90 = 228,697.94/x
  3. Step 3: Cross multiply
    389,840.15x = 537,983.90 × 228,697.94
  4. Step 4: Simplify right side
    389,840.15x = 123,035,805,849.76
  5. Step 5: Solve for x
    x = 123,035,805,849.76/389,840.15
  6. Step 6: Final answer
    x = 315,605.79

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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.