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Finding the Fourth Proportional to 354,551.58, 531,860.37 and 141,268.05

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Solution

The fourth proportional to 354,551.58, 531,860.37 and 141,268.05 is: 211,915.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,551.58 : 531,860.37 = 141,268.05 : x
  2. Step 2: Convert to fraction form
    354,551.58/531,860.37 = 141,268.05/x
  3. Step 3: Cross multiply
    354,551.58x = 531,860.37 × 141,268.05
  4. Step 4: Simplify right side
    354,551.58x = 75,134,877,342.18
  5. Step 5: Solve for x
    x = 75,134,877,342.18/354,551.58
  6. Step 6: Final answer
    x = 211,915.22

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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.