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Finding the Fourth Proportional to 388,304.82, 536,025.96 and 261,054.21

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Solution

The fourth proportional to 388,304.82, 536,025.96 and 261,054.21 is: 360,365.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,304.82 : 536,025.96 = 261,054.21 : x
  2. Step 2: Convert to fraction form
    388,304.82/536,025.96 = 261,054.21/x
  3. Step 3: Cross multiply
    388,304.82x = 536,025.96 × 261,054.21
  4. Step 4: Simplify right side
    388,304.82x = 139,931,833,527.29
  5. Step 5: Solve for x
    x = 139,931,833,527.29/388,304.82
  6. Step 6: Final answer
    x = 360,365.95

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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.