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Finding the Fourth Proportional to 339,994.71, 510,065.43 and 103,356.45

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Solution

The fourth proportional to 339,994.71, 510,065.43 and 103,356.45 is: 155,056.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,994.71 : 510,065.43 = 103,356.45 : x
  2. Step 2: Convert to fraction form
    339,994.71/510,065.43 = 103,356.45/x
  3. Step 3: Cross multiply
    339,994.71x = 510,065.43 × 103,356.45
  4. Step 4: Simplify right side
    339,994.71x = 52,718,552,112.52
  5. Step 5: Solve for x
    x = 52,718,552,112.52/339,994.71
  6. Step 6: Final answer
    x = 155,056.98

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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.