Home / 236,380.64-354,574.05-78,609.08

Finding the Fourth Proportional to 236,380.64, 354,574.05 and 78,609.08

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Solution

The fourth proportional to 236,380.64, 354,574.05 and 78,609.08 is: 117,914.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,380.64 : 354,574.05 = 78,609.08 : x
  2. Step 2: Convert to fraction form
    236,380.64/354,574.05 = 78,609.08/x
  3. Step 3: Cross multiply
    236,380.64x = 354,574.05 × 78,609.08
  4. Step 4: Simplify right side
    236,380.64x = 27,872,739,862.37
  5. Step 5: Solve for x
    x = 27,872,739,862.37/236,380.64
  6. Step 6: Final answer
    x = 117,914.65

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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.