Home / 316,226.90-436,389.58-172,985.24

Finding the Fourth Proportional to 316,226.90, 436,389.58 and 172,985.24

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Solution

The fourth proportional to 316,226.90, 436,389.58 and 172,985.24 is: 238,717.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,226.90 : 436,389.58 = 172,985.24 : x
  2. Step 2: Convert to fraction form
    316,226.90/436,389.58 = 172,985.24/x
  3. Step 3: Cross multiply
    316,226.90x = 436,389.58 × 172,985.24
  4. Step 4: Simplify right side
    316,226.90x = 75,488,956,229.80
  5. Step 5: Solve for x
    x = 75,488,956,229.80/316,226.90
  6. Step 6: Final answer
    x = 238,717.69

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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.