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Finding the Fourth Proportional to 316,714.72, 436,811.52 and 245,287.84

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Solution

The fourth proportional to 316,714.72, 436,811.52 and 245,287.84 is: 338,299.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,714.72 : 436,811.52 = 245,287.84 : x
  2. Step 2: Convert to fraction form
    316,714.72/436,811.52 = 245,287.84/x
  3. Step 3: Cross multiply
    316,714.72x = 436,811.52 × 245,287.84
  4. Step 4: Simplify right side
    316,714.72x = 107,144,554,227.92
  5. Step 5: Solve for x
    x = 107,144,554,227.92/316,714.72
  6. Step 6: Final answer
    x = 338,299.89

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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.