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Finding the Fourth Proportional to 279,602.24, 385,855.53 and 158,741.06

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Solution

The fourth proportional to 279,602.24, 385,855.53 and 158,741.06 is: 219,065.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,602.24 : 385,855.53 = 158,741.06 : x
  2. Step 2: Convert to fraction form
    279,602.24/385,855.53 = 158,741.06/x
  3. Step 3: Cross multiply
    279,602.24x = 385,855.53 × 158,741.06
  4. Step 4: Simplify right side
    279,602.24x = 61,251,115,839.06
  5. Step 5: Solve for x
    x = 61,251,115,839.06/279,602.24
  6. Step 6: Final answer
    x = 219,065.18

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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.