Home / 226,280.21-312,232.01-130,768.47

Finding the Fourth Proportional to 226,280.21, 312,232.01 and 130,768.47

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Solution

The fourth proportional to 226,280.21, 312,232.01 and 130,768.47 is: 180,440.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,280.21 : 312,232.01 = 130,768.47 : x
  2. Step 2: Convert to fraction form
    226,280.21/312,232.01 = 130,768.47/x
  3. Step 3: Cross multiply
    226,280.21x = 312,232.01 × 130,768.47
  4. Step 4: Simplify right side
    226,280.21x = 40,830,101,578.88
  5. Step 5: Solve for x
    x = 40,830,101,578.88/226,280.21
  6. Step 6: Final answer
    x = 180,440.45

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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.