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Finding the Fourth Proportional to 250,756.80, 346,044.80 and 137,580.36

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Solution

The fourth proportional to 250,756.80, 346,044.80 and 137,580.36 is: 189,861.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,756.80 : 346,044.80 = 137,580.36 : x
  2. Step 2: Convert to fraction form
    250,756.80/346,044.80 = 137,580.36/x
  3. Step 3: Cross multiply
    250,756.80x = 346,044.80 × 137,580.36
  4. Step 4: Simplify right side
    250,756.80x = 47,608,968,160.13
  5. Step 5: Solve for x
    x = 47,608,968,160.13/250,756.80
  6. Step 6: Final answer
    x = 189,861.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.