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Finding the Fourth Proportional to 339,480, 509,332.32 and 181,673.28

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Solution

The fourth proportional to 339,480, 509,332.32 and 181,673.28 is: 272,570.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,480 : 509,332.32 = 181,673.28 : x
  2. Step 2: Convert to fraction form
    339,480/509,332.32 = 181,673.28/x
  3. Step 3: Cross multiply
    339,480x = 509,332.32 × 181,673.28
  4. Step 4: Simplify right side
    339,480x = 92,532,073,184.41
  5. Step 5: Solve for x
    x = 92,532,073,184.41/339,480
  6. Step 6: Final answer
    x = 272,570.03

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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.