Home / 303,948.04-418,920.35-222,142.40

Finding the Fourth Proportional to 303,948.04, 418,920.35 and 222,142.40

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Solution

The fourth proportional to 303,948.04, 418,920.35 and 222,142.40 is: 306,170.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,948.04 : 418,920.35 = 222,142.40 : x
  2. Step 2: Convert to fraction form
    303,948.04/418,920.35 = 222,142.40/x
  3. Step 3: Cross multiply
    303,948.04x = 418,920.35 × 222,142.40
  4. Step 4: Simplify right side
    303,948.04x = 93,059,971,957.84
  5. Step 5: Solve for x
    x = 93,059,971,957.84/303,948.04
  6. Step 6: Final answer
    x = 306,170.66

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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.