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Finding the Fourth Proportional to 362,409.40, 543,614.10 and 236,438.20

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Solution

The fourth proportional to 362,409.40, 543,614.10 and 236,438.20 is: 354,657.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,409.40 : 543,614.10 = 236,438.20 : x
  2. Step 2: Convert to fraction form
    362,409.40/543,614.10 = 236,438.20/x
  3. Step 3: Cross multiply
    362,409.40x = 543,614.10 × 236,438.20
  4. Step 4: Simplify right side
    362,409.40x = 128,531,139,298.62
  5. Step 5: Solve for x
    x = 128,531,139,298.62/362,409.40
  6. Step 6: Final answer
    x = 354,657.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.