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Finding the Fourth Proportional to 250,290.68, 375,385.44 and 90,361.76

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Solution

The fourth proportional to 250,290.68, 375,385.44 and 90,361.76 is: 135,524.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,290.68 : 375,385.44 = 90,361.76 : x
  2. Step 2: Convert to fraction form
    250,290.68/375,385.44 = 90,361.76/x
  3. Step 3: Cross multiply
    250,290.68x = 375,385.44 × 90,361.76
  4. Step 4: Simplify right side
    250,290.68x = 33,920,489,036.77
  5. Step 5: Solve for x
    x = 33,920,489,036.77/250,290.68
  6. Step 6: Final answer
    x = 135,524.38

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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.