Home / 291,757.12-402,735.52-196,319.16

Finding the Fourth Proportional to 291,757.12, 402,735.52 and 196,319.16

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Solution

The fourth proportional to 291,757.12, 402,735.52 and 196,319.16 is: 270,994.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,757.12 : 402,735.52 = 196,319.16 : x
  2. Step 2: Convert to fraction form
    291,757.12/402,735.52 = 196,319.16/x
  3. Step 3: Cross multiply
    291,757.12x = 402,735.52 × 196,319.16
  4. Step 4: Simplify right side
    291,757.12x = 79,064,698,988.56
  5. Step 5: Solve for x
    x = 79,064,698,988.56/291,757.12
  6. Step 6: Final answer
    x = 270,994.93

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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.