Home / 398,038.05-596,946.24-131,819.32

Finding the Fourth Proportional to 398,038.05, 596,946.24 and 131,819.32

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Solution

The fourth proportional to 398,038.05, 596,946.24 and 131,819.32 is: 197,692.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,038.05 : 596,946.24 = 131,819.32 : x
  2. Step 2: Convert to fraction form
    398,038.05/596,946.24 = 131,819.32/x
  3. Step 3: Cross multiply
    398,038.05x = 596,946.24 × 131,819.32
  4. Step 4: Simplify right side
    398,038.05x = 78,689,047,433.36
  5. Step 5: Solve for x
    x = 78,689,047,433.36/398,038.05
  6. Step 6: Final answer
    x = 197,692.27

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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.