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Finding the Fourth Proportional to 356,383.34, 534,499.76 and 212,353.01

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Solution

The fourth proportional to 356,383.34, 534,499.76 and 212,353.01 is: 318,484.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,383.34 : 534,499.76 = 212,353.01 : x
  2. Step 2: Convert to fraction form
    356,383.34/534,499.76 = 212,353.01/x
  3. Step 3: Cross multiply
    356,383.34x = 534,499.76 × 212,353.01
  4. Step 4: Simplify right side
    356,383.34x = 113,502,630,738.66
  5. Step 5: Solve for x
    x = 113,502,630,738.66/356,383.34
  6. Step 6: Final answer
    x = 318,484.68

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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.