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Finding the Fourth Proportional to 250,088.94, 345,122.76 and 136,911.69

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Solution

The fourth proportional to 250,088.94, 345,122.76 and 136,911.69 is: 188,938.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,088.94 : 345,122.76 = 136,911.69 : x
  2. Step 2: Convert to fraction form
    250,088.94/345,122.76 = 136,911.69/x
  3. Step 3: Cross multiply
    250,088.94x = 345,122.76 × 136,911.69
  4. Step 4: Simplify right side
    250,088.94x = 47,251,340,329.06
  5. Step 5: Solve for x
    x = 47,251,340,329.06/250,088.94
  6. Step 6: Final answer
    x = 188,938.14

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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.