Home / 226,012.15-311,931.62-130,511.35

Finding the Fourth Proportional to 226,012.15, 311,931.62 and 130,511.35

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Solution

The fourth proportional to 226,012.15, 311,931.62 and 130,511.35 is: 180,125.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,012.15 : 311,931.62 = 130,511.35 : x
  2. Step 2: Convert to fraction form
    226,012.15/311,931.62 = 130,511.35/x
  3. Step 3: Cross multiply
    226,012.15x = 311,931.62 × 130,511.35
  4. Step 4: Simplify right side
    226,012.15x = 40,710,616,181.33
  5. Step 5: Solve for x
    x = 40,710,616,181.33/226,012.15
  6. Step 6: Final answer
    x = 180,125.79

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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.