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Finding the Fourth Proportional to 163,683, 245,523.82 and 45,354

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Solution

The fourth proportional to 163,683, 245,523.82 and 45,354 is: 68,030.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,683 : 245,523.82 = 45,354 : x
  2. Step 2: Convert to fraction form
    163,683/245,523.82 = 45,354/x
  3. Step 3: Cross multiply
    163,683x = 245,523.82 × 45,354
  4. Step 4: Simplify right side
    163,683x = 11,135,487,332.28
  5. Step 5: Solve for x
    x = 11,135,487,332.28/163,683
  6. Step 6: Final answer
    x = 68,030.81

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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.