Home / 287,433.63-396,659.13-172,714.19

Finding the Fourth Proportional to 287,433.63, 396,659.13 and 172,714.19

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Solution

The fourth proportional to 287,433.63, 396,659.13 and 172,714.19 is: 238,346.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,433.63 : 396,659.13 = 172,714.19 : x
  2. Step 2: Convert to fraction form
    287,433.63/396,659.13 = 172,714.19/x
  3. Step 3: Cross multiply
    287,433.63x = 396,659.13 × 172,714.19
  4. Step 4: Simplify right side
    287,433.63x = 68,508,660,344.05
  5. Step 5: Solve for x
    x = 68,508,660,344.05/287,433.63
  6. Step 6: Final answer
    x = 238,346.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.