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Finding the Fourth Proportional to 303,308.96, 455,016.92 and 103,582.53

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Solution

The fourth proportional to 303,308.96, 455,016.92 and 103,582.53 is: 155,392.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,308.96 : 455,016.92 = 103,582.53 : x
  2. Step 2: Convert to fraction form
    303,308.96/455,016.92 = 103,582.53/x
  3. Step 3: Cross multiply
    303,308.96x = 455,016.92 × 103,582.53
  4. Step 4: Simplify right side
    303,308.96x = 47,131,803,248.50
  5. Step 5: Solve for x
    x = 47,131,803,248.50/303,308.96
  6. Step 6: Final answer
    x = 155,392.06

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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.