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Finding the Fourth Proportional to 429,805.74, 592,980.36 and 245,910

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Solution

The fourth proportional to 429,805.74, 592,980.36 and 245,910 is: 339,269.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,805.74 : 592,980.36 = 245,910 : x
  2. Step 2: Convert to fraction form
    429,805.74/592,980.36 = 245,910/x
  3. Step 3: Cross multiply
    429,805.74x = 592,980.36 × 245,910
  4. Step 4: Simplify right side
    429,805.74x = 145,819,800,327.60
  5. Step 5: Solve for x
    x = 145,819,800,327.60/429,805.74
  6. Step 6: Final answer
    x = 339,269.09

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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.