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Finding the Fourth Proportional to 319,274.64, 440,602.02 and 176,039.79

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Solution

The fourth proportional to 319,274.64, 440,602.02 and 176,039.79 is: 242,936.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,274.64 : 440,602.02 = 176,039.79 : x
  2. Step 2: Convert to fraction form
    319,274.64/440,602.02 = 176,039.79/x
  3. Step 3: Cross multiply
    319,274.64x = 440,602.02 × 176,039.79
  4. Step 4: Simplify right side
    319,274.64x = 77,563,487,074.38
  5. Step 5: Solve for x
    x = 77,563,487,074.38/319,274.64
  6. Step 6: Final answer
    x = 242,936.57

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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.