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Finding the Fourth Proportional to 438,607.56, 605,293.08 and 268,808.88

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Solution

The fourth proportional to 438,607.56, 605,293.08 and 268,808.88 is: 370,965.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,607.56 : 605,293.08 = 268,808.88 : x
  2. Step 2: Convert to fraction form
    438,607.56/605,293.08 = 268,808.88/x
  3. Step 3: Cross multiply
    438,607.56x = 605,293.08 × 268,808.88
  4. Step 4: Simplify right side
    438,607.56x = 162,708,154,906.55
  5. Step 5: Solve for x
    x = 162,708,154,906.55/438,607.56
  6. Step 6: Final answer
    x = 370,965.23

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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.