Home / 430,581.36-645,898.44-131,084.16

Finding the Fourth Proportional to 430,581.36, 645,898.44 and 131,084.16

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Solution

The fourth proportional to 430,581.36, 645,898.44 and 131,084.16 is: 196,634.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,581.36 : 645,898.44 = 131,084.16 : x
  2. Step 2: Convert to fraction form
    430,581.36/645,898.44 = 131,084.16/x
  3. Step 3: Cross multiply
    430,581.36x = 645,898.44 × 131,084.16
  4. Step 4: Simplify right side
    430,581.36x = 84,667,054,452.71
  5. Step 5: Solve for x
    x = 84,667,054,452.71/430,581.36
  6. Step 6: Final answer
    x = 196,634.28

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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.