Home / 228,623.04-315,511.11-137,977.56

Finding the Fourth Proportional to 228,623.04, 315,511.11 and 137,977.56

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Solution

The fourth proportional to 228,623.04, 315,511.11 and 137,977.56 is: 190,415.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,623.04 : 315,511.11 = 137,977.56 : x
  2. Step 2: Convert to fraction form
    228,623.04/315,511.11 = 137,977.56/x
  3. Step 3: Cross multiply
    228,623.04x = 315,511.11 × 137,977.56
  4. Step 4: Simplify right side
    228,623.04x = 43,533,453,110.69
  5. Step 5: Solve for x
    x = 43,533,453,110.69/228,623.04
  6. Step 6: Final answer
    x = 190,415.86

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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.