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Finding the Fourth Proportional to 340,020.36, 510,012.08 and 103,344.59

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Solution

The fourth proportional to 340,020.36, 510,012.08 and 103,344.59 is: 155,011.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,020.36 : 510,012.08 = 103,344.59 : x
  2. Step 2: Convert to fraction form
    340,020.36/510,012.08 = 103,344.59/x
  3. Step 3: Cross multiply
    340,020.36x = 510,012.08 × 103,344.59
  4. Step 4: Simplify right side
    340,020.36x = 52,706,986,235.86
  5. Step 5: Solve for x
    x = 52,706,986,235.86/340,020.36
  6. Step 6: Final answer
    x = 155,011.27

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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.