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Finding the Fourth Proportional to 319,093.28, 440,348.72 and 175,853.32

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Solution

The fourth proportional to 319,093.28, 440,348.72 and 175,853.32 is: 242,677.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,093.28 : 440,348.72 = 175,853.32 : x
  2. Step 2: Convert to fraction form
    319,093.28/440,348.72 = 175,853.32/x
  3. Step 3: Cross multiply
    319,093.28x = 440,348.72 × 175,853.32
  4. Step 4: Simplify right side
    319,093.28x = 77,436,784,369.75
  5. Step 5: Solve for x
    x = 77,436,784,369.75/319,093.28
  6. Step 6: Final answer
    x = 242,677.58

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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.