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Finding the Fourth Proportional to 608,398.82, 911,954.69 and 229,155.47

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Solution

The fourth proportional to 608,398.82, 911,954.69 and 229,155.47 is: 343,490.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,398.82 : 911,954.69 = 229,155.47 : x
  2. Step 2: Convert to fraction form
    608,398.82/911,954.69 = 229,155.47/x
  3. Step 3: Cross multiply
    608,398.82x = 911,954.69 × 229,155.47
  4. Step 4: Simplify right side
    608,398.82x = 208,979,406,739.76
  5. Step 5: Solve for x
    x = 208,979,406,739.76/608,398.82
  6. Step 6: Final answer
    x = 343,490.81

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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.