Home / 218,928.28-302,121.46-118,326.28

Finding the Fourth Proportional to 218,928.28, 302,121.46 and 118,326.28

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Solution

The fourth proportional to 218,928.28, 302,121.46 and 118,326.28 is: 163,290.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,928.28 : 302,121.46 = 118,326.28 : x
  2. Step 2: Convert to fraction form
    218,928.28/302,121.46 = 118,326.28/x
  3. Step 3: Cross multiply
    218,928.28x = 302,121.46 × 118,326.28
  4. Step 4: Simplify right side
    218,928.28x = 35,748,908,469.97
  5. Step 5: Solve for x
    x = 35,748,908,469.97/218,928.28
  6. Step 6: Final answer
    x = 163,290.50

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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.