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Finding the Fourth Proportional to 279,616.42, 385,875.15 and 152,292.03

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Solution

The fourth proportional to 279,616.42, 385,875.15 and 152,292.03 is: 210,165.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,616.42 : 385,875.15 = 152,292.03 : x
  2. Step 2: Convert to fraction form
    279,616.42/385,875.15 = 152,292.03/x
  3. Step 3: Cross multiply
    279,616.42x = 385,875.15 × 152,292.03
  4. Step 4: Simplify right side
    279,616.42x = 58,765,709,920.05
  5. Step 5: Solve for x
    x = 58,765,709,920.05/279,616.42
  6. Step 6: Final answer
    x = 210,165.45

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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.