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Finding the Fourth Proportional to 279,154.98, 418,479.06 and 101,536.42

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Solution

The fourth proportional to 279,154.98, 418,479.06 and 101,536.42 is: 152,212.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,154.98 : 418,479.06 = 101,536.42 : x
  2. Step 2: Convert to fraction form
    279,154.98/418,479.06 = 101,536.42/x
  3. Step 3: Cross multiply
    279,154.98x = 418,479.06 × 101,536.42
  4. Step 4: Simplify right side
    279,154.98x = 42,490,865,597.37
  5. Step 5: Solve for x
    x = 42,490,865,597.37/279,154.98
  6. Step 6: Final answer
    x = 152,212.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.