Home / 430,150.20-645,006.60-252,711.60

Finding the Fourth Proportional to 430,150.20, 645,006.60 and 252,711.60

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Solution

The fourth proportional to 430,150.20, 645,006.60 and 252,711.60 is: 378,938.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,150.20 : 645,006.60 = 252,711.60 : x
  2. Step 2: Convert to fraction form
    430,150.20/645,006.60 = 252,711.60/x
  3. Step 3: Cross multiply
    430,150.20x = 645,006.60 × 252,711.60
  4. Step 4: Simplify right side
    430,150.20x = 163,000,649,896.56
  5. Step 5: Solve for x
    x = 163,000,649,896.56/430,150.20
  6. Step 6: Final answer
    x = 378,938.91

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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.