Home / 235,485.84-324,979-134,903.28

Finding the Fourth Proportional to 235,485.84, 324,979 and 134,903.28

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Solution

The fourth proportional to 235,485.84, 324,979 and 134,903.28 is: 186,171.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,485.84 : 324,979 = 134,903.28 : x
  2. Step 2: Convert to fraction form
    235,485.84/324,979 = 134,903.28/x
  3. Step 3: Cross multiply
    235,485.84x = 324,979 × 134,903.28
  4. Step 4: Simplify right side
    235,485.84x = 43,840,733,031.12
  5. Step 5: Solve for x
    x = 43,840,733,031.12/235,485.84
  6. Step 6: Final answer
    x = 186,171.42

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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.