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Finding the Fourth Proportional to 304,590.64, 420,379.05 and 175,504.39

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Solution

The fourth proportional to 304,590.64, 420,379.05 and 175,504.39 is: 242,221.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,590.64 : 420,379.05 = 175,504.39 : x
  2. Step 2: Convert to fraction form
    304,590.64/420,379.05 = 175,504.39/x
  3. Step 3: Cross multiply
    304,590.64x = 420,379.05 × 175,504.39
  4. Step 4: Simplify right side
    304,590.64x = 73,778,368,739.03
  5. Step 5: Solve for x
    x = 73,778,368,739.03/304,590.64
  6. Step 6: Final answer
    x = 242,221.39

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1.5x scale

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.