Home / 279,085.90-385,134.15-151,760.38

Finding the Fourth Proportional to 279,085.90, 385,134.15 and 151,760.38

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Solution

The fourth proportional to 279,085.90, 385,134.15 and 151,760.38 is: 209,426.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,085.90 : 385,134.15 = 151,760.38 : x
  2. Step 2: Convert to fraction form
    279,085.90/385,134.15 = 151,760.38/x
  3. Step 3: Cross multiply
    279,085.90x = 385,134.15 × 151,760.38
  4. Step 4: Simplify right side
    279,085.90x = 58,448,104,954.98
  5. Step 5: Solve for x
    x = 58,448,104,954.98/279,085.90
  6. Step 6: Final answer
    x = 209,426.94

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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.