Home / 379,613.46-523,841.64-218,442.50

Finding the Fourth Proportional to 379,613.46, 523,841.64 and 218,442.50

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Solution

The fourth proportional to 379,613.46, 523,841.64 and 218,442.50 is: 301,436.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,613.46 : 523,841.64 = 218,442.50 : x
  2. Step 2: Convert to fraction form
    379,613.46/523,841.64 = 218,442.50/x
  3. Step 3: Cross multiply
    379,613.46x = 523,841.64 × 218,442.50
  4. Step 4: Simplify right side
    379,613.46x = 114,429,277,445.70
  5. Step 5: Solve for x
    x = 114,429,277,445.70/379,613.46
  6. Step 6: Final answer
    x = 301,436.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.