Home / 250,320.50-375,439.18-90,365.75

Finding the Fourth Proportional to 250,320.50, 375,439.18 and 90,365.75

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Solution

The fourth proportional to 250,320.50, 375,439.18 and 90,365.75 is: 135,533.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,320.50 : 375,439.18 = 90,365.75 : x
  2. Step 2: Convert to fraction form
    250,320.50/375,439.18 = 90,365.75/x
  3. Step 3: Cross multiply
    250,320.50x = 375,439.18 × 90,365.75
  4. Step 4: Simplify right side
    250,320.50x = 33,926,843,080.09
  5. Step 5: Solve for x
    x = 33,926,843,080.09/250,320.50
  6. Step 6: Final answer
    x = 135,533.62

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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.