Home / 270,840.11-406,043.28-128,613.42

Finding the Fourth Proportional to 270,840.11, 406,043.28 and 128,613.42

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Solution

The fourth proportional to 270,840.11, 406,043.28 and 128,613.42 is: 192,817.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,840.11 : 406,043.28 = 128,613.42 : x
  2. Step 2: Convert to fraction form
    270,840.11/406,043.28 = 128,613.42/x
  3. Step 3: Cross multiply
    270,840.11x = 406,043.28 × 128,613.42
  4. Step 4: Simplify right side
    270,840.11x = 52,222,614,908.82
  5. Step 5: Solve for x
    x = 52,222,614,908.82/270,840.11
  6. Step 6: Final answer
    x = 192,817.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.