Home / 279,109.27-385,167.18-151,782.13

Finding the Fourth Proportional to 279,109.27, 385,167.18 and 151,782.13

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Solution

The fourth proportional to 279,109.27, 385,167.18 and 151,782.13 is: 209,457.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,109.27 : 385,167.18 = 151,782.13 : x
  2. Step 2: Convert to fraction form
    279,109.27/385,167.18 = 151,782.13/x
  3. Step 3: Cross multiply
    279,109.27x = 385,167.18 × 151,782.13
  4. Step 4: Simplify right side
    279,109.27x = 58,461,494,986.49
  5. Step 5: Solve for x
    x = 58,461,494,986.49/279,109.27
  6. Step 6: Final answer
    x = 209,457.37

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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.