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Finding the Fourth Proportional to 340,019.88, 510,011.36 and 103,344.11

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Solution

The fourth proportional to 340,019.88, 510,011.36 and 103,344.11 is: 155,010.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,019.88 : 510,011.36 = 103,344.11 : x
  2. Step 2: Convert to fraction form
    340,019.88/510,011.36 = 103,344.11/x
  3. Step 3: Cross multiply
    340,019.88x = 510,011.36 × 103,344.11
  4. Step 4: Simplify right side
    340,019.88x = 52,706,667,539.03
  5. Step 5: Solve for x
    x = 52,706,667,539.03/340,019.88
  6. Step 6: Final answer
    x = 155,010.55

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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.