Home / 345,899.39-518,361.37-163,335.40

Finding the Fourth Proportional to 345,899.39, 518,361.37 and 163,335.40

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Solution

The fourth proportional to 345,899.39, 518,361.37 and 163,335.40 is: 244,772.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,899.39 : 518,361.37 = 163,335.40 : x
  2. Step 2: Convert to fraction form
    345,899.39/518,361.37 = 163,335.40/x
  3. Step 3: Cross multiply
    345,899.39x = 518,361.37 × 163,335.40
  4. Step 4: Simplify right side
    345,899.39x = 84,666,761,926.53
  5. Step 5: Solve for x
    x = 84,666,761,926.53/345,899.39
  6. Step 6: Final answer
    x = 244,772.80

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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.