Home / 430,150.57-645,226.90-130,633.43

Finding the Fourth Proportional to 430,150.57, 645,226.90 and 130,633.43

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Solution

The fourth proportional to 430,150.57, 645,226.90 and 130,633.43 is: 195,950.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,150.57 : 645,226.90 = 130,633.43 : x
  2. Step 2: Convert to fraction form
    430,150.57/645,226.90 = 130,633.43/x
  3. Step 3: Cross multiply
    430,150.57x = 645,226.90 × 130,633.43
  4. Step 4: Simplify right side
    430,150.57x = 84,288,199,522.55
  5. Step 5: Solve for x
    x = 84,288,199,522.55/430,150.57
  6. Step 6: Final answer
    x = 195,950.46

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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.