Home / 268,219.10-401,672.55-127,813.70

Finding the Fourth Proportional to 268,219.10, 401,672.55 and 127,813.70

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Solution

The fourth proportional to 268,219.10, 401,672.55 and 127,813.70 is: 191,407.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,219.10 : 401,672.55 = 127,813.70 : x
  2. Step 2: Convert to fraction form
    268,219.10/401,672.55 = 127,813.70/x
  3. Step 3: Cross multiply
    268,219.10x = 401,672.55 × 127,813.70
  4. Step 4: Simplify right side
    268,219.10x = 51,339,254,803.94
  5. Step 5: Solve for x
    x = 51,339,254,803.94/268,219.10
  6. Step 6: Final answer
    x = 191,407.90

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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.