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Finding the Fourth Proportional to 286,600.54, 429,245.16 and 136,946.02

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Solution

The fourth proportional to 286,600.54, 429,245.16 and 136,946.02 is: 205,105.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,600.54 : 429,245.16 = 136,946.02 : x
  2. Step 2: Convert to fraction form
    286,600.54/429,245.16 = 136,946.02/x
  3. Step 3: Cross multiply
    286,600.54x = 429,245.16 × 136,946.02
  4. Step 4: Simplify right side
    286,600.54x = 58,783,416,266.26
  5. Step 5: Solve for x
    x = 58,783,416,266.26/286,600.54
  6. Step 6: Final answer
    x = 205,105.74

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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.