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Finding the Fourth Proportional to 279,482.98, 385,693.42 and 152,165.56

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Solution

The fourth proportional to 279,482.98, 385,693.42 and 152,165.56 is: 209,992.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,482.98 : 385,693.42 = 152,165.56 : x
  2. Step 2: Convert to fraction form
    279,482.98/385,693.42 = 152,165.56/x
  3. Step 3: Cross multiply
    279,482.98x = 385,693.42 × 152,165.56
  4. Step 4: Simplify right side
    279,482.98x = 58,689,255,242.62
  5. Step 5: Solve for x
    x = 58,689,255,242.62/279,482.98
  6. Step 6: Final answer
    x = 209,992.23

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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.