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Finding the Fourth Proportional to 508,256.76, 762,190.61 and 171,206.85

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Solution

The fourth proportional to 508,256.76, 762,190.61 and 171,206.85 is: 256,744.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,256.76 : 762,190.61 = 171,206.85 : x
  2. Step 2: Convert to fraction form
    508,256.76/762,190.61 = 171,206.85/x
  3. Step 3: Cross multiply
    508,256.76x = 762,190.61 × 171,206.85
  4. Step 4: Simplify right side
    508,256.76x = 130,492,252,581.64
  5. Step 5: Solve for x
    x = 130,492,252,581.64/508,256.76
  6. Step 6: Final answer
    x = 256,744.75

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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.