Home / 316,214.10-436,385.98-172,974.32

Finding the Fourth Proportional to 316,214.10, 436,385.98 and 172,974.32

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Solution

The fourth proportional to 316,214.10, 436,385.98 and 172,974.32 is: 238,710.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,214.10 : 436,385.98 = 172,974.32 : x
  2. Step 2: Convert to fraction form
    316,214.10/436,385.98 = 172,974.32/x
  3. Step 3: Cross multiply
    316,214.10x = 436,385.98 × 172,974.32
  4. Step 4: Simplify right side
    316,214.10x = 75,483,568,148.03
  5. Step 5: Solve for x
    x = 75,483,568,148.03/316,214.10
  6. Step 6: Final answer
    x = 238,710.32

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1.5x scale

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.