Home / 306,617.05-423,145.46-170,659.69

Finding the Fourth Proportional to 306,617.05, 423,145.46 and 170,659.69

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Solution

The fourth proportional to 306,617.05, 423,145.46 and 170,659.69 is: 235,518.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    306,617.05 : 423,145.46 = 170,659.69 : x
  2. Step 2: Convert to fraction form
    306,617.05/423,145.46 = 170,659.69/x
  3. Step 3: Cross multiply
    306,617.05x = 423,145.46 × 170,659.69
  4. Step 4: Simplify right side
    306,617.05x = 72,213,873,028.51
  5. Step 5: Solve for x
    x = 72,213,873,028.51/306,617.05
  6. Step 6: Final answer
    x = 235,518.13

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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.