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Finding the Fourth Proportional to 388,464.88, 536,232 and 303,609.28

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Solution

The fourth proportional to 388,464.88, 536,232 and 303,609.28 is: 419,098.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,464.88 : 536,232 = 303,609.28 : x
  2. Step 2: Convert to fraction form
    388,464.88/536,232 = 303,609.28/x
  3. Step 3: Cross multiply
    388,464.88x = 536,232 × 303,609.28
  4. Step 4: Simplify right side
    388,464.88x = 162,805,011,432.96
  5. Step 5: Solve for x
    x = 162,805,011,432.96/388,464.88
  6. Step 6: Final answer
    x = 419,098.40

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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.