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Finding the Fourth Proportional to 345,038.88, 517,553.36 and 108,395.76

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Solution

The fourth proportional to 345,038.88, 517,553.36 and 108,395.76 is: 162,592.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,038.88 : 517,553.36 = 108,395.76 : x
  2. Step 2: Convert to fraction form
    345,038.88/517,553.36 = 108,395.76/x
  3. Step 3: Cross multiply
    345,038.88x = 517,553.36 × 108,395.76
  4. Step 4: Simplify right side
    345,038.88x = 56,100,589,797.75
  5. Step 5: Solve for x
    x = 56,100,589,797.75/345,038.88
  6. Step 6: Final answer
    x = 162,592.08

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1.5x scale

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.