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Finding the Fourth Proportional to 339,984.80, 510,088.15 and 162,505.64

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Solution

The fourth proportional to 339,984.80, 510,088.15 and 162,505.64 is: 243,811.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,984.80 : 510,088.15 = 162,505.64 : x
  2. Step 2: Convert to fraction form
    339,984.80/510,088.15 = 162,505.64/x
  3. Step 3: Cross multiply
    339,984.80x = 510,088.15 × 162,505.64
  4. Step 4: Simplify right side
    339,984.80x = 82,892,201,272.17
  5. Step 5: Solve for x
    x = 82,892,201,272.17/339,984.80
  6. Step 6: Final answer
    x = 243,811.49

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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.