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Finding the Fourth Proportional to 370,320, 555,365.28 and 133,632

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Solution

The fourth proportional to 370,320, 555,365.28 and 133,632 is: 200,406.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,320 : 555,365.28 = 133,632 : x
  2. Step 2: Convert to fraction form
    370,320/555,365.28 = 133,632/x
  3. Step 3: Cross multiply
    370,320x = 555,365.28 × 133,632
  4. Step 4: Simplify right side
    370,320x = 74,214,573,096.96
  5. Step 5: Solve for x
    x = 74,214,573,096.96/370,320
  6. Step 6: Final answer
    x = 200,406.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.