Home / 287,240.08-431,056.92-100,251.58

Finding the Fourth Proportional to 287,240.08, 431,056.92 and 100,251.58

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Solution

The fourth proportional to 287,240.08, 431,056.92 and 100,251.58 is: 150,446.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,240.08 : 431,056.92 = 100,251.58 : x
  2. Step 2: Convert to fraction form
    287,240.08/431,056.92 = 100,251.58/x
  3. Step 3: Cross multiply
    287,240.08x = 431,056.92 × 100,251.58
  4. Step 4: Simplify right side
    287,240.08x = 43,214,137,299.93
  5. Step 5: Solve for x
    x = 43,214,137,299.93/287,240.08
  6. Step 6: Final answer
    x = 150,446.06

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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.