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Finding the Fourth Proportional to 406,011.80, 560,408.74 and 236,278.60

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Solution

The fourth proportional to 406,011.80, 560,408.74 and 236,278.60 is: 326,129.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,011.80 : 560,408.74 = 236,278.60 : x
  2. Step 2: Convert to fraction form
    406,011.80/560,408.74 = 236,278.60/x
  3. Step 3: Cross multiply
    406,011.80x = 560,408.74 × 236,278.60
  4. Step 4: Simplify right side
    406,011.80x = 132,412,592,514.96
  5. Step 5: Solve for x
    x = 132,412,592,514.96/406,011.80
  6. Step 6: Final answer
    x = 326,129.91

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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.