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Finding the Fourth Proportional to 339,269.60, 508,904.40 and 239,218.40

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Solution

The fourth proportional to 339,269.60, 508,904.40 and 239,218.40 is: 358,827.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,269.60 : 508,904.40 = 239,218.40 : x
  2. Step 2: Convert to fraction form
    339,269.60/508,904.40 = 239,218.40/x
  3. Step 3: Cross multiply
    339,269.60x = 508,904.40 × 239,218.40
  4. Step 4: Simplify right side
    339,269.60x = 121,739,296,320.96
  5. Step 5: Solve for x
    x = 121,739,296,320.96/339,269.60
  6. Step 6: Final answer
    x = 358,827.60

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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.