Home / 280,451.71-420,050.17-130,467.25

Finding the Fourth Proportional to 280,451.71, 420,050.17 and 130,467.25

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Solution

The fourth proportional to 280,451.71, 420,050.17 and 130,467.25 is: 195,409.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,451.71 : 420,050.17 = 130,467.25 : x
  2. Step 2: Convert to fraction form
    280,451.71/420,050.17 = 130,467.25/x
  3. Step 3: Cross multiply
    280,451.71x = 420,050.17 × 130,467.25
  4. Step 4: Simplify right side
    280,451.71x = 54,802,790,541.93
  5. Step 5: Solve for x
    x = 54,802,790,541.93/280,451.71
  6. Step 6: Final answer
    x = 195,409.01

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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.