Home / 230,427.45-345,688.20-130,632.21

Finding the Fourth Proportional to 230,427.45, 345,688.20 and 130,632.21

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Solution

The fourth proportional to 230,427.45, 345,688.20 and 130,632.21 is: 195,974.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,427.45 : 345,688.20 = 130,632.21 : x
  2. Step 2: Convert to fraction form
    230,427.45/345,688.20 = 130,632.21/x
  3. Step 3: Cross multiply
    230,427.45x = 345,688.20 × 130,632.21
  4. Step 4: Simplify right side
    230,427.45x = 45,158,013,536.92
  5. Step 5: Solve for x
    x = 45,158,013,536.92/230,427.45
  6. Step 6: Final answer
    x = 195,974.97

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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.