Home / 279,659.89-385,919.73-170,946.23

Finding the Fourth Proportional to 279,659.89, 385,919.73 and 170,946.23

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Solution

The fourth proportional to 279,659.89, 385,919.73 and 170,946.23 is: 235,899.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,659.89 : 385,919.73 = 170,946.23 : x
  2. Step 2: Convert to fraction form
    279,659.89/385,919.73 = 170,946.23/x
  3. Step 3: Cross multiply
    279,659.89x = 385,919.73 × 170,946.23
  4. Step 4: Simplify right side
    279,659.89x = 65,971,522,926.12
  5. Step 5: Solve for x
    x = 65,971,522,926.12/279,659.89
  6. Step 6: Final answer
    x = 235,899.13

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1.5x scale

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.