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Finding the Fourth Proportional to 259,348.47, 388,929.09 and 109,600.32

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Solution

The fourth proportional to 259,348.47, 388,929.09 and 109,600.32 is: 164,360.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,348.47 : 388,929.09 = 109,600.32 : x
  2. Step 2: Convert to fraction form
    259,348.47/388,929.09 = 109,600.32/x
  3. Step 3: Cross multiply
    259,348.47x = 388,929.09 × 109,600.32
  4. Step 4: Simplify right side
    259,348.47x = 42,626,754,590.79
  5. Step 5: Solve for x
    x = 42,626,754,590.79/259,348.47
  6. Step 6: Final answer
    x = 164,360.93

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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.