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Finding the Fourth Proportional to 493,153.50, 680,556.75 and 266,803.86

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Solution

The fourth proportional to 493,153.50, 680,556.75 and 266,803.86 is: 368,191.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,153.50 : 680,556.75 = 266,803.86 : x
  2. Step 2: Convert to fraction form
    493,153.50/680,556.75 = 266,803.86/x
  3. Step 3: Cross multiply
    493,153.50x = 680,556.75 × 266,803.86
  4. Step 4: Simplify right side
    493,153.50x = 181,575,167,849.06
  5. Step 5: Solve for x
    x = 181,575,167,849.06/493,153.50
  6. Step 6: Final answer
    x = 368,191.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.