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Finding the Fourth Proportional to 305,596.68, 458,488.88 and 145,876.43

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Solution

The fourth proportional to 305,596.68, 458,488.88 and 145,876.43 is: 218,859.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,596.68 : 458,488.88 = 145,876.43 : x
  2. Step 2: Convert to fraction form
    305,596.68/458,488.88 = 145,876.43/x
  3. Step 3: Cross multiply
    305,596.68x = 458,488.88 × 145,876.43
  4. Step 4: Simplify right side
    305,596.68x = 66,882,717,987.27
  5. Step 5: Solve for x
    x = 66,882,717,987.27/305,596.68
  6. Step 6: Final answer
    x = 218,859.44

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1.5x scale

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.