Home / 226,288.47-312,243.38-130,776.72

Finding the Fourth Proportional to 226,288.47, 312,243.38 and 130,776.72

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Solution

The fourth proportional to 226,288.47, 312,243.38 and 130,776.72 is: 180,451.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,288.47 : 312,243.38 = 130,776.72 : x
  2. Step 2: Convert to fraction form
    226,288.47/312,243.38 = 130,776.72/x
  3. Step 3: Cross multiply
    226,288.47x = 312,243.38 × 130,776.72
  4. Step 4: Simplify right side
    226,288.47x = 40,834,164,424.23
  5. Step 5: Solve for x
    x = 40,834,164,424.23/226,288.47
  6. Step 6: Final answer
    x = 180,451.81

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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.