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Finding the Fourth Proportional to 370,900.89, 555,486.09 and 270,812.84

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Solution

The fourth proportional to 370,900.89, 555,486.09 and 270,812.84 is: 405,587.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,900.89 : 555,486.09 = 270,812.84 : x
  2. Step 2: Convert to fraction form
    370,900.89/555,486.09 = 270,812.84/x
  3. Step 3: Cross multiply
    370,900.89x = 555,486.09 × 270,812.84
  4. Step 4: Simplify right side
    370,900.89x = 150,432,762,835.97
  5. Step 5: Solve for x
    x = 150,432,762,835.97/370,900.89
  6. Step 6: Final answer
    x = 405,587.49

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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.