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Finding the Fourth Proportional to 339,342, 508,663.05 and 152,484.72

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Solution

The fourth proportional to 339,342, 508,663.05 and 152,484.72 is: 228,569.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,342 : 508,663.05 = 152,484.72 : x
  2. Step 2: Convert to fraction form
    339,342/508,663.05 = 152,484.72/x
  3. Step 3: Cross multiply
    339,342x = 508,663.05 × 152,484.72
  4. Step 4: Simplify right side
    339,342x = 77,563,342,753.60
  5. Step 5: Solve for x
    x = 77,563,342,753.60/339,342
  6. Step 6: Final answer
    x = 228,569.83

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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.