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Finding the Fourth Proportional to 290,216.88, 435,437.28 and 112,848.84

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Solution

The fourth proportional to 290,216.88, 435,437.28 and 112,848.84 is: 169,316.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,216.88 : 435,437.28 = 112,848.84 : x
  2. Step 2: Convert to fraction form
    290,216.88/435,437.28 = 112,848.84/x
  3. Step 3: Cross multiply
    290,216.88x = 435,437.28 × 112,848.84
  4. Step 4: Simplify right side
    290,216.88x = 49,138,591,940.76
  5. Step 5: Solve for x
    x = 49,138,591,940.76/290,216.88
  6. Step 6: Final answer
    x = 169,316.79

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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.