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Finding the Fourth Proportional to 369,493.35, 509,636.31 and 240,190.62

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Solution

The fourth proportional to 369,493.35, 509,636.31 and 240,190.62 is: 331,291.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,493.35 : 509,636.31 = 240,190.62 : x
  2. Step 2: Convert to fraction form
    369,493.35/509,636.31 = 240,190.62/x
  3. Step 3: Cross multiply
    369,493.35x = 509,636.31 × 240,190.62
  4. Step 4: Simplify right side
    369,493.35x = 122,409,858,461.56
  5. Step 5: Solve for x
    x = 122,409,858,461.56/369,493.35
  6. Step 6: Final answer
    x = 331,291.10

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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.