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Finding the Fourth Proportional to 304,699.44, 420,923.28 and 243,365.04

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Solution

The fourth proportional to 304,699.44, 420,923.28 and 243,365.04 is: 336,193.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,699.44 : 420,923.28 = 243,365.04 : x
  2. Step 2: Convert to fraction form
    304,699.44/420,923.28 = 243,365.04/x
  3. Step 3: Cross multiply
    304,699.44x = 420,923.28 × 243,365.04
  4. Step 4: Simplify right side
    304,699.44x = 102,438,010,874.13
  5. Step 5: Solve for x
    x = 102,438,010,874.13/304,699.44
  6. Step 6: Final answer
    x = 336,193.63

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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.