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Finding the Fourth Proportional to 303,334.70, 455,002.05 and 103,625.15

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Solution

The fourth proportional to 303,334.70, 455,002.05 and 103,625.15 is: 155,437.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,334.70 : 455,002.05 = 103,625.15 : x
  2. Step 2: Convert to fraction form
    303,334.70/455,002.05 = 103,625.15/x
  3. Step 3: Cross multiply
    303,334.70x = 455,002.05 × 103,625.15
  4. Step 4: Simplify right side
    303,334.70x = 47,149,655,681.56
  5. Step 5: Solve for x
    x = 47,149,655,681.56/303,334.70
  6. Step 6: Final answer
    x = 155,437.73

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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.