Home / 430,937.15-646,403.96-131,416.85

Finding the Fourth Proportional to 430,937.15, 646,403.96 and 131,416.85

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Solution

The fourth proportional to 430,937.15, 646,403.96 and 131,416.85 is: 197,124.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,937.15 : 646,403.96 = 131,416.85 : x
  2. Step 2: Convert to fraction form
    430,937.15/646,403.96 = 131,416.85/x
  3. Step 3: Cross multiply
    430,937.15x = 646,403.96 × 131,416.85
  4. Step 4: Simplify right side
    430,937.15x = 84,948,372,250.73
  5. Step 5: Solve for x
    x = 84,948,372,250.73/430,937.15
  6. Step 6: Final answer
    x = 197,124.74

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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.