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Finding the Fourth Proportional to 340,167.51, 510,211.59 and 126,942.77

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Solution

The fourth proportional to 340,167.51, 510,211.59 and 126,942.77 is: 190,399.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,167.51 : 510,211.59 = 126,942.77 : x
  2. Step 2: Convert to fraction form
    340,167.51/510,211.59 = 126,942.77/x
  3. Step 3: Cross multiply
    340,167.51x = 510,211.59 × 126,942.77
  4. Step 4: Simplify right side
    340,167.51x = 64,767,669,969.65
  5. Step 5: Solve for x
    x = 64,767,669,969.65/340,167.51
  6. Step 6: Final answer
    x = 190,399.34

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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.