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Finding the Fourth Proportional to 336,809.40, 504,047.70 and 308,815.80

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Solution

The fourth proportional to 336,809.40, 504,047.70 and 308,815.80 is: 462,154.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,809.40 : 504,047.70 = 308,815.80 : x
  2. Step 2: Convert to fraction form
    336,809.40/504,047.70 = 308,815.80/x
  3. Step 3: Cross multiply
    336,809.40x = 504,047.70 × 308,815.80
  4. Step 4: Simplify right side
    336,809.40x = 155,657,893,713.66
  5. Step 5: Solve for x
    x = 155,657,893,713.66/336,809.40
  6. Step 6: Final answer
    x = 462,154.24

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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.