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Finding the Fourth Proportional to 371,615.45, 512,841.48 and 210,466.96

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Solution

The fourth proportional to 371,615.45, 512,841.48 and 210,466.96 is: 290,451.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,615.45 : 512,841.48 = 210,466.96 : x
  2. Step 2: Convert to fraction form
    371,615.45/512,841.48 = 210,466.96/x
  3. Step 3: Cross multiply
    371,615.45x = 512,841.48 × 210,466.96
  4. Step 4: Simplify right side
    371,615.45x = 107,936,185,186.15
  5. Step 5: Solve for x
    x = 107,936,185,186.15/371,615.45
  6. Step 6: Final answer
    x = 290,451.29

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1.5x scale

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.