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Finding the Fourth Proportional to 250,124.76, 345,169.55 and 135,400.82

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Solution

The fourth proportional to 250,124.76, 345,169.55 and 135,400.82 is: 186,851.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,124.76 : 345,169.55 = 135,400.82 : x
  2. Step 2: Convert to fraction form
    250,124.76/345,169.55 = 135,400.82/x
  3. Step 3: Cross multiply
    250,124.76x = 345,169.55 × 135,400.82
  4. Step 4: Simplify right side
    250,124.76x = 46,736,238,721.69
  5. Step 5: Solve for x
    x = 46,736,238,721.69/250,124.76
  6. Step 6: Final answer
    x = 186,851.71

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1.5x scale

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.