Home / 389,487.16-537,581.96-228,394.10

Finding the Fourth Proportional to 389,487.16, 537,581.96 and 228,394.10

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Solution

The fourth proportional to 389,487.16, 537,581.96 and 228,394.10 is: 315,236.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,487.16 : 537,581.96 = 228,394.10 : x
  2. Step 2: Convert to fraction form
    389,487.16/537,581.96 = 228,394.10/x
  3. Step 3: Cross multiply
    389,487.16x = 537,581.96 × 228,394.10
  4. Step 4: Simplify right side
    389,487.16x = 122,780,548,132.42
  5. Step 5: Solve for x
    x = 122,780,548,132.42/389,487.16
  6. Step 6: Final answer
    x = 315,236.45

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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.