Home / 287,568.20-431,352.30-236,829.80

Finding the Fourth Proportional to 287,568.20, 431,352.30 and 236,829.80

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Solution

The fourth proportional to 287,568.20, 431,352.30 and 236,829.80 is: 355,244.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,568.20 : 431,352.30 = 236,829.80 : x
  2. Step 2: Convert to fraction form
    287,568.20/431,352.30 = 236,829.80/x
  3. Step 3: Cross multiply
    287,568.20x = 431,352.30 × 236,829.80
  4. Step 4: Simplify right side
    287,568.20x = 102,157,078,938.54
  5. Step 5: Solve for x
    x = 102,157,078,938.54/287,568.20
  6. Step 6: Final answer
    x = 355,244.70

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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.