Home / 279,008.13-385,014.87-151,682.61

Finding the Fourth Proportional to 279,008.13, 385,014.87 and 151,682.61

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Solution

The fourth proportional to 279,008.13, 385,014.87 and 151,682.61 is: 209,313.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,008.13 : 385,014.87 = 151,682.61 : x
  2. Step 2: Convert to fraction form
    279,008.13/385,014.87 = 151,682.61/x
  3. Step 3: Cross multiply
    279,008.13x = 385,014.87 × 151,682.61
  4. Step 4: Simplify right side
    279,008.13x = 58,400,060,370.41
  5. Step 5: Solve for x
    x = 58,400,060,370.41/279,008.13
  6. Step 6: Final answer
    x = 209,313.11

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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.