Home / 223,318.40-308,180.54-121,344.12

Finding the Fourth Proportional to 223,318.40, 308,180.54 and 121,344.12

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Solution

The fourth proportional to 223,318.40, 308,180.54 and 121,344.12 is: 167,455.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,318.40 : 308,180.54 = 121,344.12 : x
  2. Step 2: Convert to fraction form
    223,318.40/308,180.54 = 121,344.12/x
  3. Step 3: Cross multiply
    223,318.40x = 308,180.54 × 121,344.12
  4. Step 4: Simplify right side
    223,318.40x = 37,395,896,427.42
  5. Step 5: Solve for x
    x = 37,395,896,427.42/223,318.40
  6. Step 6: Final answer
    x = 167,455.51

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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.