Home / 422,832.23-634,341.65-123,336.25

Finding the Fourth Proportional to 422,832.23, 634,341.65 and 123,336.25

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Solution

The fourth proportional to 422,832.23, 634,341.65 and 123,336.25 is: 185,031.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,832.23 : 634,341.65 = 123,336.25 : x
  2. Step 2: Convert to fraction form
    422,832.23/634,341.65 = 123,336.25/x
  3. Step 3: Cross multiply
    422,832.23x = 634,341.65 × 123,336.25
  4. Step 4: Simplify right side
    422,832.23x = 78,237,316,541.42
  5. Step 5: Solve for x
    x = 78,237,316,541.42/422,832.23
  6. Step 6: Final answer
    x = 185,031.58

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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.