Home / 287,187.12-432,930.83-267,919.65

Finding the Fourth Proportional to 287,187.12, 432,930.83 and 267,919.65

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Solution

The fourth proportional to 287,187.12, 432,930.83 and 267,919.65 is: 403,885.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,187.12 : 432,930.83 = 267,919.65 : x
  2. Step 2: Convert to fraction form
    287,187.12/432,930.83 = 267,919.65/x
  3. Step 3: Cross multiply
    287,187.12x = 432,930.83 × 267,919.65
  4. Step 4: Simplify right side
    287,187.12x = 115,990,675,108.21
  5. Step 5: Solve for x
    x = 115,990,675,108.21/287,187.12
  6. Step 6: Final answer
    x = 403,885.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.