Home / 223,329.13-308,190.34-121,356.20

Finding the Fourth Proportional to 223,329.13, 308,190.34 and 121,356.20

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Solution

The fourth proportional to 223,329.13, 308,190.34 and 121,356.20 is: 167,469.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,329.13 : 308,190.34 = 121,356.20 : x
  2. Step 2: Convert to fraction form
    223,329.13/308,190.34 = 121,356.20/x
  3. Step 3: Cross multiply
    223,329.13x = 308,190.34 × 121,356.20
  4. Step 4: Simplify right side
    223,329.13x = 37,400,808,539.11
  5. Step 5: Solve for x
    x = 37,400,808,539.11/223,329.13
  6. Step 6: Final answer
    x = 167,469.46

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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.