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Finding the Fourth Proportional to 368,894.66, 509,076.36 and 207,752.45

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Solution

The fourth proportional to 368,894.66, 509,076.36 and 207,752.45 is: 286,699.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,894.66 : 509,076.36 = 207,752.45 : x
  2. Step 2: Convert to fraction form
    368,894.66/509,076.36 = 207,752.45/x
  3. Step 3: Cross multiply
    368,894.66x = 509,076.36 × 207,752.45
  4. Step 4: Simplify right side
    368,894.66x = 105,761,858,481.70
  5. Step 5: Solve for x
    x = 105,761,858,481.70/368,894.66
  6. Step 6: Final answer
    x = 286,699.35

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.