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Finding the Fourth Proportional to 275,520.99, 412,886.81 and 156,947.49

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Solution

The fourth proportional to 275,520.99, 412,886.81 and 156,947.49 is: 235,196.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,520.99 : 412,886.81 = 156,947.49 : x
  2. Step 2: Convert to fraction form
    275,520.99/412,886.81 = 156,947.49/x
  3. Step 3: Cross multiply
    275,520.99x = 412,886.81 × 156,947.49
  4. Step 4: Simplify right side
    275,520.99x = 64,801,547,698.87
  5. Step 5: Solve for x
    x = 64,801,547,698.87/275,520.99
  6. Step 6: Final answer
    x = 235,196.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.