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Finding the Fourth Proportional to 303,465.83, 418,720.31 and 174,379.35

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Solution

The fourth proportional to 303,465.83, 418,720.31 and 174,379.35 is: 240,607.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,465.83 : 418,720.31 = 174,379.35 : x
  2. Step 2: Convert to fraction form
    303,465.83/418,720.31 = 174,379.35/x
  3. Step 3: Cross multiply
    303,465.83x = 418,720.31 × 174,379.35
  4. Step 4: Simplify right side
    303,465.83x = 73,016,176,841.83
  5. Step 5: Solve for x
    x = 73,016,176,841.83/303,465.83
  6. Step 6: Final answer
    x = 240,607.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.