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Finding the Fourth Proportional to 219,063.40, 328,740.90 and 124,293.40

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Solution

The fourth proportional to 219,063.40, 328,740.90 and 124,293.40 is: 186,522.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,063.40 : 328,740.90 = 124,293.40 : x
  2. Step 2: Convert to fraction form
    219,063.40/328,740.90 = 124,293.40/x
  3. Step 3: Cross multiply
    219,063.40x = 328,740.90 × 124,293.40
  4. Step 4: Simplify right side
    219,063.40x = 40,860,324,180.06
  5. Step 5: Solve for x
    x = 40,860,324,180.06/219,063.40
  6. Step 6: Final answer
    x = 186,522.82

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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.