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Finding the Fourth Proportional to 219,720.60, 303,222.60 and 124,221.60

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Solution

The fourth proportional to 219,720.60, 303,222.60 and 124,221.60 is: 171,430.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,720.60 : 303,222.60 = 124,221.60 : x
  2. Step 2: Convert to fraction form
    219,720.60/303,222.60 = 124,221.60/x
  3. Step 3: Cross multiply
    219,720.60x = 303,222.60 × 124,221.60
  4. Step 4: Simplify right side
    219,720.60x = 37,666,796,975.66
  5. Step 5: Solve for x
    x = 37,666,796,975.66/219,720.60
  6. Step 6: Final answer
    x = 171,430.43

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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.