Home / 279,037.10-385,060.67-151,708.30

Finding the Fourth Proportional to 279,037.10, 385,060.67 and 151,708.30

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Solution

The fourth proportional to 279,037.10, 385,060.67 and 151,708.30 is: 209,351.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,037.10 : 385,060.67 = 151,708.30 : x
  2. Step 2: Convert to fraction form
    279,037.10/385,060.67 = 151,708.30/x
  3. Step 3: Cross multiply
    279,037.10x = 385,060.67 × 151,708.30
  4. Step 4: Simplify right side
    279,037.10x = 58,416,899,642.56
  5. Step 5: Solve for x
    x = 58,416,899,642.56/279,037.10
  6. Step 6: Final answer
    x = 209,351.73

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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.