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Finding the Fourth Proportional to 339,295.76, 508,939.32 and 83,130.92

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Solution

The fourth proportional to 339,295.76, 508,939.32 and 83,130.92 is: 124,695.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,295.76 : 508,939.32 = 83,130.92 : x
  2. Step 2: Convert to fraction form
    339,295.76/508,939.32 = 83,130.92/x
  3. Step 3: Cross multiply
    339,295.76x = 508,939.32 × 83,130.92
  4. Step 4: Simplify right side
    339,295.76x = 42,308,593,895.77
  5. Step 5: Solve for x
    x = 42,308,593,895.77/339,295.76
  6. Step 6: Final answer
    x = 124,695.32

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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.