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Finding the Fourth Proportional to 203,078.04, 304,401.06 and 76,664.58

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Solution

The fourth proportional to 203,078.04, 304,401.06 and 76,664.58 is: 114,915.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,078.04 : 304,401.06 = 76,664.58 : x
  2. Step 2: Convert to fraction form
    203,078.04/304,401.06 = 76,664.58/x
  3. Step 3: Cross multiply
    203,078.04x = 304,401.06 × 76,664.58
  4. Step 4: Simplify right side
    203,078.04x = 23,336,779,416.45
  5. Step 5: Solve for x
    x = 23,336,779,416.45/203,078.04
  6. Step 6: Final answer
    x = 114,915.33

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1.5x scale

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.