Home / 287,820.45-431,733.41-110,285.25

Finding the Fourth Proportional to 287,820.45, 431,733.41 and 110,285.25

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Solution

The fourth proportional to 287,820.45, 431,733.41 and 110,285.25 is: 165,428.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,820.45 : 431,733.41 = 110,285.25 : x
  2. Step 2: Convert to fraction form
    287,820.45/431,733.41 = 110,285.25/x
  3. Step 3: Cross multiply
    287,820.45x = 431,733.41 × 110,285.25
  4. Step 4: Simplify right side
    287,820.45x = 47,613,826,503.78
  5. Step 5: Solve for x
    x = 47,613,826,503.78/287,820.45
  6. Step 6: Final answer
    x = 165,428.92

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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.