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Finding the Fourth Proportional to 316,460.32, 436,714.92 and 173,219.08

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Solution

The fourth proportional to 316,460.32, 436,714.92 and 173,219.08 is: 239,042.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,460.32 : 436,714.92 = 173,219.08 : x
  2. Step 2: Convert to fraction form
    316,460.32/436,714.92 = 173,219.08/x
  3. Step 3: Cross multiply
    316,460.32x = 436,714.92 × 173,219.08
  4. Step 4: Simplify right side
    316,460.32x = 75,647,356,664.67
  5. Step 5: Solve for x
    x = 75,647,356,664.67/316,460.32
  6. Step 6: Final answer
    x = 239,042.15

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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.