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Finding the Fourth Proportional to 275,133.40, 379,841.40 and 210,483.52

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Solution

The fourth proportional to 275,133.40, 379,841.40 and 210,483.52 is: 290,587.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,133.40 : 379,841.40 = 210,483.52 : x
  2. Step 2: Convert to fraction form
    275,133.40/379,841.40 = 210,483.52/x
  3. Step 3: Cross multiply
    275,133.40x = 379,841.40 × 210,483.52
  4. Step 4: Simplify right side
    275,133.40x = 79,950,354,913.73
  5. Step 5: Solve for x
    x = 79,950,354,913.73/275,133.40
  6. Step 6: Final answer
    x = 290,587.60

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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.