Home / 309,623.40-427,319.82-182,310.84

Finding the Fourth Proportional to 309,623.40, 427,319.82 and 182,310.84

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Solution

The fourth proportional to 309,623.40, 427,319.82 and 182,310.84 is: 251,612.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,623.40 : 427,319.82 = 182,310.84 : x
  2. Step 2: Convert to fraction form
    309,623.40/427,319.82 = 182,310.84/x
  3. Step 3: Cross multiply
    309,623.40x = 427,319.82 × 182,310.84
  4. Step 4: Simplify right side
    309,623.40x = 77,905,035,332.85
  5. Step 5: Solve for x
    x = 77,905,035,332.85/309,623.40
  6. Step 6: Final answer
    x = 251,612.23

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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.