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Finding the Fourth Proportional to 508,401.51, 762,408.05 and 171,351.60

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Solution

The fourth proportional to 508,401.51, 762,408.05 and 171,351.60 is: 256,961.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,401.51 : 762,408.05 = 171,351.60 : x
  2. Step 2: Convert to fraction form
    508,401.51/762,408.05 = 171,351.60/x
  3. Step 3: Cross multiply
    508,401.51x = 762,408.05 × 171,351.60
  4. Step 4: Simplify right side
    508,401.51x = 130,639,838,363.62
  5. Step 5: Solve for x
    x = 130,639,838,363.62/508,401.51
  6. Step 6: Final answer
    x = 256,961.94

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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.