Home / 279,259.06-385,378.41-151,934.62

Finding the Fourth Proportional to 279,259.06, 385,378.41 and 151,934.62

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Solution

The fourth proportional to 279,259.06, 385,378.41 and 151,934.62 is: 209,670.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,259.06 : 385,378.41 = 151,934.62 : x
  2. Step 2: Convert to fraction form
    279,259.06/385,378.41 = 151,934.62/x
  3. Step 3: Cross multiply
    279,259.06x = 385,378.41 × 151,934.62
  4. Step 4: Simplify right side
    279,259.06x = 58,552,322,279.55
  5. Step 5: Solve for x
    x = 58,552,322,279.55/279,259.06
  6. Step 6: Final answer
    x = 209,670.27

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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.