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Finding the Fourth Proportional to 356,091.60, 534,137.40 and 223,381.20

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Solution

The fourth proportional to 356,091.60, 534,137.40 and 223,381.20 is: 335,071.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,091.60 : 534,137.40 = 223,381.20 : x
  2. Step 2: Convert to fraction form
    356,091.60/534,137.40 = 223,381.20/x
  3. Step 3: Cross multiply
    356,091.60x = 534,137.40 × 223,381.20
  4. Step 4: Simplify right side
    356,091.60x = 119,316,253,376.88
  5. Step 5: Solve for x
    x = 119,316,253,376.88/356,091.60
  6. Step 6: Final answer
    x = 335,071.80

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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.