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Finding the Fourth Proportional to 369,532.80, 554,357.28 and 120,156.48

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Solution

The fourth proportional to 369,532.80, 554,357.28 and 120,156.48 is: 180,253.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,532.80 : 554,357.28 = 120,156.48 : x
  2. Step 2: Convert to fraction form
    369,532.80/554,357.28 = 120,156.48/x
  3. Step 3: Cross multiply
    369,532.80x = 554,357.28 × 120,156.48
  4. Step 4: Simplify right side
    369,532.80x = 66,609,619,427.17
  5. Step 5: Solve for x
    x = 66,609,619,427.17/369,532.80
  6. Step 6: Final answer
    x = 180,253.61

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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.