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Finding the Fourth Proportional to 140,367.61, 210,488.86 and 40,504.08

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Solution

The fourth proportional to 140,367.61, 210,488.86 and 40,504.08 is: 60,738.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,367.61 : 210,488.86 = 40,504.08 : x
  2. Step 2: Convert to fraction form
    140,367.61/210,488.86 = 40,504.08/x
  3. Step 3: Cross multiply
    140,367.61x = 210,488.86 × 40,504.08
  4. Step 4: Simplify right side
    140,367.61x = 8,525,657,624.55
  5. Step 5: Solve for x
    x = 8,525,657,624.55/140,367.61
  6. Step 6: Final answer
    x = 60,738.07

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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.