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Finding the Fourth Proportional to 339,004.32, 508,490 and 125,813.76

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Solution

The fourth proportional to 339,004.32, 508,490 and 125,813.76 is: 188,714.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,004.32 : 508,490 = 125,813.76 : x
  2. Step 2: Convert to fraction form
    339,004.32/508,490 = 125,813.76/x
  3. Step 3: Cross multiply
    339,004.32x = 508,490 × 125,813.76
  4. Step 4: Simplify right side
    339,004.32x = 63,975,038,822.40
  5. Step 5: Solve for x
    x = 63,975,038,822.40/339,004.32
  6. Step 6: Final answer
    x = 188,714.52

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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.