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Finding the Fourth Proportional to 286,599.96, 395,385.26 and 178,983.16

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Solution

The fourth proportional to 286,599.96, 395,385.26 and 178,983.16 is: 246,920.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,599.96 : 395,385.26 = 178,983.16 : x
  2. Step 2: Convert to fraction form
    286,599.96/395,385.26 = 178,983.16/x
  3. Step 3: Cross multiply
    286,599.96x = 395,385.26 × 178,983.16
  4. Step 4: Simplify right side
    286,599.96x = 70,767,303,252.22
  5. Step 5: Solve for x
    x = 70,767,303,252.22/286,599.96
  6. Step 6: Final answer
    x = 246,920.14

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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.