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Finding the Fourth Proportional to 191,029.40, 286,850.10 and 151,911.80

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Solution

The fourth proportional to 191,029.40, 286,850.10 and 151,911.80 is: 228,111.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,029.40 : 286,850.10 = 151,911.80 : x
  2. Step 2: Convert to fraction form
    191,029.40/286,850.10 = 151,911.80/x
  3. Step 3: Cross multiply
    191,029.40x = 286,850.10 × 151,911.80
  4. Step 4: Simplify right side
    191,029.40x = 43,575,915,021.18
  5. Step 5: Solve for x
    x = 43,575,915,021.18/191,029.40
  6. Step 6: Final answer
    x = 228,111.04

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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.