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Finding the Fourth Proportional to 268,599.07, 370,719.35 and 153,954.54

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Solution

The fourth proportional to 268,599.07, 370,719.35 and 153,954.54 is: 212,487.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,599.07 : 370,719.35 = 153,954.54 : x
  2. Step 2: Convert to fraction form
    268,599.07/370,719.35 = 153,954.54/x
  3. Step 3: Cross multiply
    268,599.07x = 370,719.35 × 153,954.54
  4. Step 4: Simplify right side
    268,599.07x = 57,073,926,805.91
  5. Step 5: Solve for x
    x = 57,073,926,805.91/268,599.07
  6. Step 6: Final answer
    x = 212,487.43

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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.