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Finding the Fourth Proportional to 545,176.01, 817,819.95 and 208,499.84

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Solution

The fourth proportional to 545,176.01, 817,819.95 and 208,499.84 is: 312,771.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,176.01 : 817,819.95 = 208,499.84 : x
  2. Step 2: Convert to fraction form
    545,176.01/817,819.95 = 208,499.84/x
  3. Step 3: Cross multiply
    545,176.01x = 817,819.95 × 208,499.84
  4. Step 4: Simplify right side
    545,176.01x = 170,515,328,723.81
  5. Step 5: Solve for x
    x = 170,515,328,723.81/545,176.01
  6. Step 6: Final answer
    x = 312,771.15

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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.