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Finding the Fourth Proportional to 508,391.75, 762,393.42 and 171,341.84

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Solution

The fourth proportional to 508,391.75, 762,393.42 and 171,341.84 is: 256,947.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,391.75 : 762,393.42 = 171,341.84 : x
  2. Step 2: Convert to fraction form
    508,391.75/762,393.42 = 171,341.84/x
  3. Step 3: Cross multiply
    508,391.75x = 762,393.42 × 171,341.84
  4. Step 4: Simplify right side
    508,391.75x = 130,629,887,574.73
  5. Step 5: Solve for x
    x = 130,629,887,574.73/508,391.75
  6. Step 6: Final answer
    x = 256,947.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.