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Finding the Fourth Proportional to 279,682.77, 385,958.73 and 152,355.63

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Solution

The fourth proportional to 279,682.77, 385,958.73 and 152,355.63 is: 210,248.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,682.77 : 385,958.73 = 152,355.63 : x
  2. Step 2: Convert to fraction form
    279,682.77/385,958.73 = 152,355.63/x
  3. Step 3: Cross multiply
    279,682.77x = 385,958.73 × 152,355.63
  4. Step 4: Simplify right side
    279,682.77x = 58,802,985,463.15
  5. Step 5: Solve for x
    x = 58,802,985,463.15/279,682.77
  6. Step 6: Final answer
    x = 210,248.87

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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.