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Finding the Fourth Proportional to 279,417.52, 385,585.44 and 158,551.59

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Solution

The fourth proportional to 279,417.52, 385,585.44 and 158,551.59 is: 218,795.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,417.52 : 385,585.44 = 158,551.59 : x
  2. Step 2: Convert to fraction form
    279,417.52/385,585.44 = 158,551.59/x
  3. Step 3: Cross multiply
    279,417.52x = 385,585.44 × 158,551.59
  4. Step 4: Simplify right side
    279,417.52x = 61,135,184,592.85
  5. Step 5: Solve for x
    x = 61,135,184,592.85/279,417.52
  6. Step 6: Final answer
    x = 218,795.10

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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.