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Finding the Fourth Proportional to 268,397, 370,387.86 and 155,227.04

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Solution

The fourth proportional to 268,397, 370,387.86 and 155,227.04 is: 214,213.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,397 : 370,387.86 = 155,227.04 : x
  2. Step 2: Convert to fraction form
    268,397/370,387.86 = 155,227.04/x
  3. Step 3: Cross multiply
    268,397x = 370,387.86 × 155,227.04
  4. Step 4: Simplify right side
    268,397x = 57,494,211,159.73
  5. Step 5: Solve for x
    x = 57,494,211,159.73/268,397
  6. Step 6: Final answer
    x = 214,213.32

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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.