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Finding the Fourth Proportional to 366,645.70, 549,968.55 and 100,405.79

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Solution

The fourth proportional to 366,645.70, 549,968.55 and 100,405.79 is: 150,608.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,645.70 : 549,968.55 = 100,405.79 : x
  2. Step 2: Convert to fraction form
    366,645.70/549,968.55 = 100,405.79/x
  3. Step 3: Cross multiply
    366,645.70x = 549,968.55 × 100,405.79
  4. Step 4: Simplify right side
    366,645.70x = 55,220,026,737.90
  5. Step 5: Solve for x
    x = 55,220,026,737.90/366,645.70
  6. Step 6: Final answer
    x = 150,608.69

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Similar ratio
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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.