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Finding the Fourth Proportional to 250,228.50, 345,315.33 and 137,053.68

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Solution

The fourth proportional to 250,228.50, 345,315.33 and 137,053.68 is: 189,134.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,228.50 : 345,315.33 = 137,053.68 : x
  2. Step 2: Convert to fraction form
    250,228.50/345,315.33 = 137,053.68/x
  3. Step 3: Cross multiply
    250,228.50x = 345,315.33 × 137,053.68
  4. Step 4: Simplify right side
    250,228.50x = 47,326,736,736.91
  5. Step 5: Solve for x
    x = 47,326,736,736.91/250,228.50
  6. Step 6: Final answer
    x = 189,134.08

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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.