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Finding the Fourth Proportional to 402,382.40, 603,573.60 and 236,494.40

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Solution

The fourth proportional to 402,382.40, 603,573.60 and 236,494.40 is: 354,741.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,382.40 : 603,573.60 = 236,494.40 : x
  2. Step 2: Convert to fraction form
    402,382.40/603,573.60 = 236,494.40/x
  3. Step 3: Cross multiply
    402,382.40x = 603,573.60 × 236,494.40
  4. Step 4: Simplify right side
    402,382.40x = 142,741,776,387.84
  5. Step 5: Solve for x
    x = 142,741,776,387.84/402,382.40
  6. Step 6: Final answer
    x = 354,741.60

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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.