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Finding the Fourth Proportional to 508,334.12, 761,969.16 and 171,258.30

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Solution

The fourth proportional to 508,334.12, 761,969.16 and 171,258.30 is: 256,708.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,334.12 : 761,969.16 = 171,258.30 : x
  2. Step 2: Convert to fraction form
    508,334.12/761,969.16 = 171,258.30/x
  3. Step 3: Cross multiply
    508,334.12x = 761,969.16 × 171,258.30
  4. Step 4: Simplify right side
    508,334.12x = 130,493,542,994.03
  5. Step 5: Solve for x
    x = 130,493,542,994.03/508,334.12
  6. Step 6: Final answer
    x = 256,708.21

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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.