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Finding the Fourth Proportional to 250,460.04, 345,640.86 and 137,289

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Solution

The fourth proportional to 250,460.04, 345,640.86 and 137,289 is: 189,462.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,460.04 : 345,640.86 = 137,289 : x
  2. Step 2: Convert to fraction form
    250,460.04/345,640.86 = 137,289/x
  3. Step 3: Cross multiply
    250,460.04x = 345,640.86 × 137,289
  4. Step 4: Simplify right side
    250,460.04x = 47,452,688,028.54
  5. Step 5: Solve for x
    x = 47,452,688,028.54/250,460.04
  6. Step 6: Final answer
    x = 189,462.11

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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.