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Finding the Fourth Proportional to 354,759.60, 532,290.60 and 186,409.20

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Solution

The fourth proportional to 354,759.60, 532,290.60 and 186,409.20 is: 279,693.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,759.60 : 532,290.60 = 186,409.20 : x
  2. Step 2: Convert to fraction form
    354,759.60/532,290.60 = 186,409.20/x
  3. Step 3: Cross multiply
    354,759.60x = 532,290.60 × 186,409.20
  4. Step 4: Simplify right side
    354,759.60x = 99,223,864,913.52
  5. Step 5: Solve for x
    x = 99,223,864,913.52/354,759.60
  6. Step 6: Final answer
    x = 279,693.25

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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.