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Finding the Fourth Proportional to 339,492, 509,350.32 and 181,685.28

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Solution

The fourth proportional to 339,492, 509,350.32 and 181,685.28 is: 272,588.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,492 : 509,350.32 = 181,685.28 : x
  2. Step 2: Convert to fraction form
    339,492/509,350.32 = 181,685.28/x
  3. Step 3: Cross multiply
    339,492x = 509,350.32 × 181,685.28
  4. Step 4: Simplify right side
    339,492x = 92,541,455,507.29
  5. Step 5: Solve for x
    x = 92,541,455,507.29/339,492
  6. Step 6: Final answer
    x = 272,588.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.