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Finding the Fourth Proportional to 286,450.20, 429,850.80 and 118,051.20

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Solution

The fourth proportional to 286,450.20, 429,850.80 and 118,051.20 is: 177,149.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,450.20 : 429,850.80 = 118,051.20 : x
  2. Step 2: Convert to fraction form
    286,450.20/429,850.80 = 118,051.20/x
  3. Step 3: Cross multiply
    286,450.20x = 429,850.80 × 118,051.20
  4. Step 4: Simplify right side
    286,450.20x = 50,744,402,760.96
  5. Step 5: Solve for x
    x = 50,744,402,760.96/286,450.20
  6. Step 6: Final answer
    x = 177,149.13

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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.