Home / 279,443.08-385,629.52-152,118.36

Finding the Fourth Proportional to 279,443.08, 385,629.52 and 152,118.36

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Solution

The fourth proportional to 279,443.08, 385,629.52 and 152,118.36 is: 209,922.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,443.08 : 385,629.52 = 152,118.36 : x
  2. Step 2: Convert to fraction form
    279,443.08/385,629.52 = 152,118.36/x
  3. Step 3: Cross multiply
    279,443.08x = 385,629.52 × 152,118.36
  4. Step 4: Simplify right side
    279,443.08x = 58,661,330,149.99
  5. Step 5: Solve for x
    x = 58,661,330,149.99/279,443.08
  6. Step 6: Final answer
    x = 209,922.29

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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.