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Finding the Fourth Proportional to 236,666.62, 354,868.71 and 78,808.96

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Solution

The fourth proportional to 236,666.62, 354,868.71 and 78,808.96 is: 118,169.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,666.62 : 354,868.71 = 78,808.96 : x
  2. Step 2: Convert to fraction form
    236,666.62/354,868.71 = 78,808.96/x
  3. Step 3: Cross multiply
    236,666.62x = 354,868.71 × 78,808.96
  4. Step 4: Simplify right side
    236,666.62x = 27,966,833,971.64
  5. Step 5: Solve for x
    x = 27,966,833,971.64/236,666.62
  6. Step 6: Final answer
    x = 118,169.74

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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.