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Finding the Fourth Proportional to 219,980.88, 303,578.15 and 124,487.55

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Solution

The fourth proportional to 219,980.88, 303,578.15 and 124,487.55 is: 171,795.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,980.88 : 303,578.15 = 124,487.55 : x
  2. Step 2: Convert to fraction form
    219,980.88/303,578.15 = 124,487.55/x
  3. Step 3: Cross multiply
    219,980.88x = 303,578.15 × 124,487.55
  4. Step 4: Simplify right side
    219,980.88x = 37,791,699,504.59
  5. Step 5: Solve for x
    x = 37,791,699,504.59/219,980.88
  6. Step 6: Final answer
    x = 171,795.38

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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.