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Finding the Fourth Proportional to 250,319.50, 375,437.68 and 90,364.75

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Solution

The fourth proportional to 250,319.50, 375,437.68 and 90,364.75 is: 135,532.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,319.50 : 375,437.68 = 90,364.75 : x
  2. Step 2: Convert to fraction form
    250,319.50/375,437.68 = 90,364.75/x
  3. Step 3: Cross multiply
    250,319.50x = 375,437.68 × 90,364.75
  4. Step 4: Simplify right side
    250,319.50x = 33,926,330,929.27
  5. Step 5: Solve for x
    x = 33,926,330,929.27/250,319.50
  6. Step 6: Final answer
    x = 135,532.12

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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.