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Finding the Fourth Proportional to 250,710.63, 375,971.61 and 90,747.03

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Solution

The fourth proportional to 250,710.63, 375,971.61 and 90,747.03 is: 136,086.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,710.63 : 375,971.61 = 90,747.03 : x
  2. Step 2: Convert to fraction form
    250,710.63/375,971.61 = 90,747.03/x
  3. Step 3: Cross multiply
    250,710.63x = 375,971.61 × 90,747.03
  4. Step 4: Simplify right side
    250,710.63x = 34,118,306,971.82
  5. Step 5: Solve for x
    x = 34,118,306,971.82/250,710.63
  6. Step 6: Final answer
    x = 136,086.40

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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.