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Finding the Fourth Proportional to 279,483.96, 385,694.80 and 152,166.56

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Solution

The fourth proportional to 279,483.96, 385,694.80 and 152,166.56 is: 209,993.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,483.96 : 385,694.80 = 152,166.56 : x
  2. Step 2: Convert to fraction form
    279,483.96/385,694.80 = 152,166.56/x
  3. Step 3: Cross multiply
    279,483.96x = 385,694.80 × 152,166.56
  4. Step 4: Simplify right side
    279,483.96x = 58,689,850,925.89
  5. Step 5: Solve for x
    x = 58,689,850,925.89/279,483.96
  6. Step 6: Final answer
    x = 209,993.63

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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.