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Finding the Fourth Proportional to 250,969.61, 346,338.69 and 137,799.65

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Solution

The fourth proportional to 250,969.61, 346,338.69 and 137,799.65 is: 190,163.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,969.61 : 346,338.69 = 137,799.65 : x
  2. Step 2: Convert to fraction form
    250,969.61/346,338.69 = 137,799.65/x
  3. Step 3: Cross multiply
    250,969.61x = 346,338.69 × 137,799.65
  4. Step 4: Simplify right side
    250,969.61x = 47,725,350,263.46
  5. Step 5: Solve for x
    x = 47,725,350,263.46/250,969.61
  6. Step 6: Final answer
    x = 190,163.86

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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.