Home / 285,499.41-427,781.93-172,838.15

Finding the Fourth Proportional to 285,499.41, 427,781.93 and 172,838.15

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Solution

The fourth proportional to 285,499.41, 427,781.93 and 172,838.15 is: 258,974.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,499.41 : 427,781.93 = 172,838.15 : x
  2. Step 2: Convert to fraction form
    285,499.41/427,781.93 = 172,838.15/x
  3. Step 3: Cross multiply
    285,499.41x = 427,781.93 × 172,838.15
  4. Step 4: Simplify right side
    285,499.41x = 73,937,037,589.89
  5. Step 5: Solve for x
    x = 73,937,037,589.89/285,499.41
  6. Step 6: Final answer
    x = 258,974.40

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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.