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Finding the Fourth Proportional to 345,088.80, 517,924.80 and 134,877.60

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Solution

The fourth proportional to 345,088.80, 517,924.80 and 134,877.60 is: 202,430.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,088.80 : 517,924.80 = 134,877.60 : x
  2. Step 2: Convert to fraction form
    345,088.80/517,924.80 = 134,877.60/x
  3. Step 3: Cross multiply
    345,088.80x = 517,924.80 × 134,877.60
  4. Step 4: Simplify right side
    345,088.80x = 69,856,454,004.48
  5. Step 5: Solve for x
    x = 69,856,454,004.48/345,088.80
  6. Step 6: Final answer
    x = 202,430.37

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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.