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Finding the Fourth Proportional to 242,800.40, 335,058 and 140,819.42

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Solution

The fourth proportional to 242,800.40, 335,058 and 140,819.42 is: 194,327.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,800.40 : 335,058 = 140,819.42 : x
  2. Step 2: Convert to fraction form
    242,800.40/335,058 = 140,819.42/x
  3. Step 3: Cross multiply
    242,800.40x = 335,058 × 140,819.42
  4. Step 4: Simplify right side
    242,800.40x = 47,182,673,226.36
  5. Step 5: Solve for x
    x = 47,182,673,226.36/242,800.40
  6. Step 6: Final answer
    x = 194,327.00

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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.