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Finding the Fourth Proportional to 220,009.68, 303,613.20 and 124,514.64

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Solution

The fourth proportional to 220,009.68, 303,613.20 and 124,514.64 is: 171,830.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,009.68 : 303,613.20 = 124,514.64 : x
  2. Step 2: Convert to fraction form
    220,009.68/303,613.20 = 124,514.64/x
  3. Step 3: Cross multiply
    220,009.68x = 303,613.20 × 124,514.64
  4. Step 4: Simplify right side
    220,009.68x = 37,804,288,297.25
  5. Step 5: Solve for x
    x = 37,804,288,297.25/220,009.68
  6. Step 6: Final answer
    x = 171,830.11

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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.