Home / 389,304.09-537,137.94-228,072.45

Finding the Fourth Proportional to 389,304.09, 537,137.94 and 228,072.45

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Solution

The fourth proportional to 389,304.09, 537,137.94 and 228,072.45 is: 314,680.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,304.09 : 537,137.94 = 228,072.45 : x
  2. Step 2: Convert to fraction form
    389,304.09/537,137.94 = 228,072.45/x
  3. Step 3: Cross multiply
    389,304.09x = 537,137.94 × 228,072.45
  4. Step 4: Simplify right side
    389,304.09x = 122,506,365,963.75
  5. Step 5: Solve for x
    x = 122,506,365,963.75/389,304.09
  6. Step 6: Final answer
    x = 314,680.40

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1.5x scale

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.