Home / 292,631.69-438,915.60-198,466.76

Finding the Fourth Proportional to 292,631.69, 438,915.60 and 198,466.76

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Solution

The fourth proportional to 292,631.69, 438,915.60 and 198,466.76 is: 297,678.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,631.69 : 438,915.60 = 198,466.76 : x
  2. Step 2: Convert to fraction form
    292,631.69/438,915.60 = 198,466.76/x
  3. Step 3: Cross multiply
    292,631.69x = 438,915.60 × 198,466.76
  4. Step 4: Simplify right side
    292,631.69x = 87,110,154,850.88
  5. Step 5: Solve for x
    x = 87,110,154,850.88/292,631.69
  6. Step 6: Final answer
    x = 297,678.48

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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.