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Finding the Fourth Proportional to 370,648.34, 555,972.51 and 90,163.16

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Solution

The fourth proportional to 370,648.34, 555,972.51 and 90,163.16 is: 135,244.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,648.34 : 555,972.51 = 90,163.16 : x
  2. Step 2: Convert to fraction form
    370,648.34/555,972.51 = 90,163.16/x
  3. Step 3: Cross multiply
    370,648.34x = 555,972.51 × 90,163.16
  4. Step 4: Simplify right side
    370,648.34x = 50,128,238,374.73
  5. Step 5: Solve for x
    x = 50,128,238,374.73/370,648.34
  6. Step 6: Final answer
    x = 135,244.74

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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.