Home / 279,620.12-385,879.02-152,296.76

Finding the Fourth Proportional to 279,620.12, 385,879.02 and 152,296.76

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Solution

The fourth proportional to 279,620.12, 385,879.02 and 152,296.76 is: 210,171.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,620.12 : 385,879.02 = 152,296.76 : x
  2. Step 2: Convert to fraction form
    279,620.12/385,879.02 = 152,296.76/x
  3. Step 3: Cross multiply
    279,620.12x = 385,879.02 × 152,296.76
  4. Step 4: Simplify right side
    279,620.12x = 58,768,124,497.98
  5. Step 5: Solve for x
    x = 58,768,124,497.98/279,620.12
  6. Step 6: Final answer
    x = 210,171.30

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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.