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Finding the Fourth Proportional to 319,199.43, 440,489.70 and 175,972.80

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Solution

The fourth proportional to 319,199.43, 440,489.70 and 175,972.80 is: 242,839.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,199.43 : 440,489.70 = 175,972.80 : x
  2. Step 2: Convert to fraction form
    319,199.43/440,489.70 = 175,972.80/x
  3. Step 3: Cross multiply
    319,199.43x = 440,489.70 × 175,972.80
  4. Step 4: Simplify right side
    319,199.43x = 77,514,205,880.16
  5. Step 5: Solve for x
    x = 77,514,205,880.16/319,199.43
  6. Step 6: Final answer
    x = 242,839.42

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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.