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Finding the Fourth Proportional to 553,628.20, 830,442.30 and 179,651.20

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Solution

The fourth proportional to 553,628.20, 830,442.30 and 179,651.20 is: 269,476.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,628.20 : 830,442.30 = 179,651.20 : x
  2. Step 2: Convert to fraction form
    553,628.20/830,442.30 = 179,651.20/x
  3. Step 3: Cross multiply
    553,628.20x = 830,442.30 × 179,651.20
  4. Step 4: Simplify right side
    553,628.20x = 149,189,955,725.76
  5. Step 5: Solve for x
    x = 149,189,955,725.76/553,628.20
  6. Step 6: Final answer
    x = 269,476.80

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Similar ratio
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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.