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Finding the Fourth Proportional to 508,391.25, 762,392.67 and 171,341.34

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Solution

The fourth proportional to 508,391.25, 762,392.67 and 171,341.34 is: 256,946.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,391.25 : 762,392.67 = 171,341.34 : x
  2. Step 2: Convert to fraction form
    508,391.25/762,392.67 = 171,341.34/x
  3. Step 3: Cross multiply
    508,391.25x = 762,392.67 × 171,341.34
  4. Step 4: Simplify right side
    508,391.25x = 130,629,381,683.98
  5. Step 5: Solve for x
    x = 130,629,381,683.98/508,391.25
  6. Step 6: Final answer
    x = 256,946.56

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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.