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Finding the Fourth Proportional to 387,714.99, 534,967.59 and 226,538.87

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Solution

The fourth proportional to 387,714.99, 534,967.59 and 226,538.87 is: 312,577.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,714.99 : 534,967.59 = 226,538.87 : x
  2. Step 2: Convert to fraction form
    387,714.99/534,967.59 = 226,538.87/x
  3. Step 3: Cross multiply
    387,714.99x = 534,967.59 × 226,538.87
  4. Step 4: Simplify right side
    387,714.99x = 121,190,950,650.39
  5. Step 5: Solve for x
    x = 121,190,950,650.39/387,714.99
  6. Step 6: Final answer
    x = 312,577.42

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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.