Home / 218,816.40-301,966.56-118,214.40

Finding the Fourth Proportional to 218,816.40, 301,966.56 and 118,214.40

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Solution

The fourth proportional to 218,816.40, 301,966.56 and 118,214.40 is: 163,135.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,816.40 : 301,966.56 = 118,214.40 : x
  2. Step 2: Convert to fraction form
    218,816.40/301,966.56 = 118,214.40/x
  3. Step 3: Cross multiply
    218,816.40x = 301,966.56 × 118,214.40
  4. Step 4: Simplify right side
    218,816.40x = 35,696,795,710.46
  5. Step 5: Solve for x
    x = 35,696,795,710.46/218,816.40
  6. Step 6: Final answer
    x = 163,135.83

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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.